Au gratin
Au• gra•tin" [F.] (Cookery) With a crust made by browning in the oven; as spaghetti may be served au gratin. { Auld licht, Auld light }. (Eccl. Hist.) (a) A member of the conservative party in the Church of Scotland in the latter part of the 18th century. (b) Same as Burgher, n. , 2.

Aubade
Au•bade´, n. [F., fr. aube the dawn, fr. L. albus white.] An open air concert in the morning, as distinguished from an evening serenade; also a pianoforte composition suggestive of morning. Grove.
"The crowing cock … Sang his aubade with lusty voice and clear." - Longfellow.

Aubaine
Au•baine´, n. [F., fr. aubain an alien, fr. L. alibi elsewhere.] Succession to the goods of a stranger not naturalized. Littre. Droit d’aubaine, the right, formerly possessed by the king of France, to all the personal property of which an alien died possessed. It was abolished in 1819. Bouvier.

Aube, n. [See Ale.] An alb. [Obs.] Fuller.

Aubin
Au´bin, n. [F.] A broken gait of a horse, between an amble and a gallop; — commonly called a Canterbury gallop.

Auburn
Au´burn, a. [OE. auburne blonde, OF. alborne, auborne, fr. LL. alburnus whitish, fr. L. albus white. Cf. Alburn.]
1. Flaxen- colored. [Obs.] Florio.
2. Reddish brown.
"His auburn locks on either shoulder flowed." - Dryden.

Auctary
Auc´ta•ry, n. [L. auctarium.] That which is superadded; augmentation. [Obs.] Baxter.

Auction
Auc´tion, n. [L. auctio an increasing, a public sale, where the price was called out, and the article to be sold was adjudged to the last increaser of the price, or the highest bidder, fr. L. augere, auctum, to increase. See Augment.]
1. A public sale of property to the highest bidder, esp. by a person licensed and authorized for the purpose; a vendue.
2. The things sold by auction or put up to auction.
"Ask you why Phryne the whole auction buys ?" - Pope.
In the United States, the more prevalent expression has been "sales a. auction," that is, by an increase of bids (Lat. auctione). This latter form is preferable. Dutch auction, the public offer of property at a price beyond its value, then gradually lowering the price, till some one accepts it as purchaser. P. Cyc.

Auction
Auc´tion, v. t. To sell by auction.

Auction bridge
Auc"tion bridge. A variety of the game of bridge in which the players, beginning with the dealer, bid for the privilege of naming the trump and playing with the dummy for that deal, there being heavy penalties for a player’s failure to make good his bid. The score value of each trick more than six taken by the successful bidder is as follows: when the trump is spades, 2; clubs, 6; diamonds, 7; hearts, 8; royal spades (lilies), 9; and when the deal is played with no trump, 10.

Auction pitch. A game of cards in which the players bid for the privilege of determining or "pitching" the trump suit. R. F. Foster.

Auctionary
Auc´tion•a•ry, a. [L. auctionarius.] Of or pertaining to an auction or an auctioneer. [R.]
" With auctionary hammer in thy hand." - Dryden.

Auctioneer
Auc•tion•eer´, n. A person who sells by auction; a person whose business it is to dispose of goods or lands by public sale to the highest or best bidder.

Auctioneer
Auc•tion•eer´, v. t. To sell by auction; to auction.
"Estates … advertised and auctioneered away." - Cowper.

Aucupation
Au•cu•pa´tion, n. [L. aucupatio, fr. auceps, contr. for aviceps; avis bird + capere to take.] Birdcatching; fowling. [Obs.] Blount.

Audacious
Au•da´cious, a. [F. audacieux, as if fr. LL. audaciosus (not found), fr. L. audacia audacity, fr. audax, -acis, bold, fr. audere to dare.]
1. Daring; spirited; adventurous.
"As in a cloudy chair, ascending rides Audacious." - Milton.
2. Contemning the restraints of law, religion, or decorum; bold in wickedness; presumptuous; impudent; insolent. " Audacious traitor." Shak. " Such audacious neighborhood." Milton.
3. Committed with, or proceedings from, daring effrontery or contempt of law, morality, or decorum. "Audacious cruelty." "Audacious prate." Shak.

Audaciously
Au•da´cious•ly, adv. In an audacious manner; with excess of boldness; impudently.

Audaciousness
Au•da´cious•ness, n. The quality of being audacious; impudence; audacity.

Audacity
Au•dac´i•ty, n.
1. Daring spirit, resolution, or confidence; venturesomeness.
"The freedom and audacity necessary in the commerce of men." - Tatler.
2. Reckless daring; presumptuous impudence; — implying a contempt of law or moral restraints.
"With the most arrogant audacity." - Joye.

Audibility
Au•di•bil´i•ty, n. The quality of being audible; power of being heard; audible capacity.

Audible
Au´di•ble, a. [LL. audibilis, fr. L. audire, auditum, to hear: cf. Gr. ear, L. auris, and E. ear.] Capable of being heard; loud enough to be heard; actually heard; as an audible voice or whisper.

Audible
Au´di•ble, n. That which may be heard. [Obs.]
"Visibles are swiftlier carried to the sense than audibles." - Bacon.

Audibleness
Au´di•ble•ness, n. The quality of being audible.

Audibly
Au´di•bly, adv. So as to be heard.

Audience
Au´di•ence, n. [F. audience, L. audientia, fr. audire to hear. See Audible, a. ]
1. The act of hearing; attention to sounds.
"Thou, therefore, give due audience, and attend." - Milton.
2. Admittance to a hearing; a formal interview, esp. with a sovereign or the head of a government, for conference or the transaction of business.
"According to the fair play of the world, Let me have audience: I am sent to speak." - Shak.
3. An auditory; an assembly of hearers. Also applied by authors to their readers.
"Fit audience find, though few." - Milton.
"He drew his audience upward to the sky." - Dryden.
Court of audience, or Audience court (Eng.), a court long since disused, belonging to the Archbishop of Canterbury; also one belonging to the Archbishop of York. Mozley & W. — In general (or openaudience, publicly. — To give audience, to listen; to admit to an interview.

Audile
Au´dile, n. [L. audire to hear.] (Psychol.) One whose thoughts take the form of mental sounds or of internal discourse rather than of visual or motor images.

Audiometer
Au•di•om´e•ter, n. [L. audire to hear + -meter.] (Acous.) An instrument by which the power of hearing can be gauged and recorded on a scale.

Audiphone
Au´di•phone, n. [L. audire to hear + Gr. sound.] An instrument which, placed against the teeth, conveys sound to the auditory nerve and enables the deaf to hear more or less distinctly; a dentiphone.

Audit
Au´dit, n. [L. auditus a hearing, fr. audire. See Audible, a. ]
1. An audience; a hearing. [Obs.]
"He appeals to a high audit." - Milton.
2. An examination in general; a judicial examination. Specifically: An examination of an account or of accounts, with the hearing of the parties concerned, by proper officers, or persons appointed for that purpose, who compare the charges with the vouchers, examine witnesses, and state the result.
3. The result of such an examination, or an account as adjusted by auditors; final account.
"Yet I can make my audit up." - Shak.
4. A general receptacle or receiver. [Obs.]
"It [a little brook] paid to its common audit no more than the revenues of a little cloud." - Jer. Taylor.
Audit ale, a kind of ale, brewed at the English universities, orig. for the day of audit. — Audit house, Audit room, an appendage to a cathedral, for the transaction of its business.

Audit
Au´dit, v. t. [ imp. & p. p. Audited; p. pr. & vb. n. Auditing.] To examine and adjust, as an account or accounts; as to audit the accounts of a treasure, or of parties who have a suit depending in court.

Audit
Au´dit, v. i. To settle or adjust an account.
"Let Hocus audit; he knows how the money was disbursed." - Arbuthnot.

Audita querela
Au•di"ta que•re"la . [L., the complaint having been heard.] (Law) A writ which lies for a party against whom judgment is recovered, but to whom good matter of discharge has subsequently accrued which could not have been availed of to prevent such judgment. Wharton.

Audition
Au•di´tion, n. [L. auditio.] The act of hearing or listening; hearing.
"Audition may be active or passive; hence the difference between listening and simple hearing." - Dunglison.

Auditive
Au´di•tive, a. [Cf. F. auditif.] Of or pertaining to hearing; auditory. [R.] Cotgrave.

Auditor
Au´di•tor, n. [L. auditor, fr. audire. See Audible, a. ]
1. A hearer or listener. Macaulay.
2. A person appointed and authorized to audit or examine an account or accounts, compare the charges with the vouchers, examine the parties and witnesses, allow or reject charges, and state the balance.
3. One who hears judicially, as in an audience court. In the United States government, and in the State governments, there are auditors of the treasury and of the public accounts. The name is also applied to persons employed to check the accounts of courts, corporations, companies, societies, and partnerships.

Auditorium
Au•di•to´ri•um, n. [L. See Auditory, n. ] The part of a church, theater, or other public building, assigned to the audience. In ancient churches the auditorium was the nave, where hearers stood to be instructed; in monasteries it was an apartment for the reception of strangers.

Auditory
Au´di•to•ry, a. [L. auditorius.] Of or pertaining to hearing, or to the sense or organs of hearing; as the auditory nerve. See Ear. Auditory canal (Anat.), the tube from the auditory meatus or opening of the ear to the tympanic membrane.

Auditory
Au´di•to•ry, n. [L. auditorium.]
1. An assembly of hearers; an audience.
2. An auditorium. Udall.

Auditress
Au´di•tress, n. A female hearer. Milton.

Auditual
Au•dit´u•al, a. Auditory. [R.] Coleridge.

Auf (af), n. [OE. auph, aulf, fr. Icel. alfr elf. See Elf.] [Also spelt oaf, ouphe.] A changeling or elf child, — that is, one left by fairies; a deformed or foolish child; a simpleton; an oaf. [Obs.] Drayton.

Augean
Au•ge´an, a.
1. (Class. Myth.) Of or pertaining to Augeus, king of Elis, whose stable contained 3000 oxen, and had not been cleaned for 30 years. Hercules cleansed it in a single day.
2. Hence: Exceedingly filthy or corrupt. Augean stable (Fig.), an accumulation of corruption or filth almost beyond the power of man to remedy.

Auger
Au´ger, n. [OE. augoure, nauger, AS. nafegar, fr. nafu, nafa, nave of a wheel + gar spear, and therefore meaning properly and originally a nave-bore. See Nave (of a wheel) and 2d Gore, n. ]
1. A carpenter’s tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge.
2. An instrument for boring or perforating soils or rocks, for determining the quality of soils, or the nature of the rocks or strata upon which they lie, and for obtaining water. Auger bit, a bit with a cutting edge or blade like that of an anger.

Aught, n. [OE. aught, ought, awiht, AS. awiht, a ever + wiht. rad.136. See Aye ever, and Whit, Wight.] Anything; any part. [Also written ought.]
"There failed not aught of any good thing which the Lord has spoken." - Josh. xxi. 45
"But go, my son, and see if aught be wanting." - Addison.

Aught (at), adv. At all; in any degree. Chaucer.

Augite
Au´gite (a"jit), n. [L. augites, Gr. a’ygi•ths, fr. a’ygh• brightness: cf. F. augite.] A variety of pyroxene, usually of a black or dark green color, occurring in igneous rocks, such as basalt; — also used instead of the general term pyroxene.

Augitic
Au•git´ic (a•jit"ik), a. Pertaining to, or like, augite; containing augite as a principal constituent; as augitic rocks.

Augment
Aug•ment´, v. t. [ imp. & p. p. Augmented; p. pr. & vb. n. Augmenting.] [L. augmentare, fr. augmentum an increase, fr. augere to increase; perh. akin to Gr.,, E. wax, v., and eke, v.: cf. F. augmenter.]
1. To enlarge or increase in size, amount, or degree; to swell; to make bigger; as to augment an army by reëforcements; rain augments a stream; impatience augments an evil.
"But their spite still serves His glory to augment." - Milton.
2. (Gram.) To add an augment to.

Augment
Aug•ment´, v. i. To increase; to grow larger, stronger, or more intense; as a stream augments by rain.

Augment
Aug´ment, n. [L. augmentum: cf. F. augment.]
1. Enlargement by addition; increase.
2. (Gram.) A vowel prefixed, or a lengthening of the initial vowel, to mark past time, as in Greek and Sanskrit verbs. In Greek, the syllabic augment is a prefixed, forming an intial syllable; the temporal augment is an increase of the quantity (time) of an initial vowel, as by changing to .

Augmentable
Aug•ment´a•ble, a. Capable of augmentation. Walsh.

Augmentation
Aug•men•ta´tion, n. [LL. augmentatio: cf. F. augmentation.]
1. The act or process of augmenting, or making larger, by addition, expansion, or dilation; increase.
2. The state of being augmented; enlargement.
3. The thing added by way of enlargement.
4. (Her.) A additional charge to a coat of arms, given as a mark of honor. Cussans.
5. (Med.) The stage of a disease in which the symptoms go on increasing. Dunglison.
6. (Mus.) In counterpoint and fugue, a repetition of the subject in tones of twice the original length. Augmentation court (Eng. Hist.), a court erected by Stat. 27 Hen. VIII., to augment the revenues of the crown by the suppression of monasteries. It was long ago dissolved. Encyc. Brit.
Syn. — Increase; enlargement; growth; extension; accession; addition.

Augmentative
Aug•ment´a•tive, a. [Cf. F. augmentatif.] Having the quality or power of augmenting; expressing augmentation. — Aug•ment´a•tive•ly, adv.

Augmentative
Aug•ment´a•tive, n. (Gram.) A word which expresses with augmented force the idea or the properties of the term from which it is derived; as dullard, one very dull. Opposed to diminutive. Gibbs.

Augmenter
Aug•ment´er, n. One who, or that which, augments or increases anything.

Augrim
Au´grim, n. See Algorism. [Obs.] Chaucer. Augrim stones, pebbles formerly used in numeration. — Noumbres of Augrim, Arabic numerals. Chaucer.

Augural
Au´gu•ral, a. [L. auguralis.] Of or pertaining to augurs or to augury; betokening; ominous; significant; as an augural staff; augural books. "Portents augural." Cowper.

Augurate
Au´gu•rate, v. t. & i. [L. auguratus, p. p. of augurari to augur.] To make or take auguries; to augur; to predict. [Obs.] C. Middleton.

Augurate
Au´gu•rate, n. The office of an augur. Merivale.

Auguration
Au•gu•ra´tion, n. [L. auguratio.] The practice of augury.

Augurer
Au´gur•er, n. An augur. [Obs.] Shak.

Augurial
Au•gu´ri•al, a. [L. augurialis.] Relating to augurs or to augury. Sir T. Browne.

Augurist
Au´gu•rist, n. An augur. [R.]

Augurize
Au´gur•ize, v. t. To augur. [Obs.] Blount.

Augurous
Au´gu•rous, a. Full of augury; foreboding. [Obs.] "Augurous hearts." Chapman.

Augurship
Au´gur•ship, n. The office, or period of office, of an augur. Bacon.

Augury
Au´gu•ry, n. ; pl. Auguries . [L. aucurium.]
1. The art or practice of foretelling events by observing the actions of birds, etc.; divination.
2. An omen; prediction; prognostication; indication of the future; presage.
"From their flight strange auguries she drew." - Drayton.
"He resigned himself … with a docility that gave little augury of his future greatness." - Prescott.
3. A rite, ceremony, or observation of an augur.

August
Au•gust´, a. [L. augustus; cf. augere to increase; in the language of religion, to honor by offerings: cf. F. auguste. See Augment.] Of a quality inspiring mingled admiration and reverence; having an aspect of solemn dignity or grandeur; sublime; majestic; having exalted birth, character, state, or authority. "Forms august." Pope. "August in visage." Dryden. "To shed that august blood." Macaulay.
"So beautiful and so august a spectacle." - Burke.
"To mingle with a body so august." - Byron.
Syn. — Grand; magnificent; majestic; solemn; awful; noble; stately; dignified; imposing.

August
Au´gust, n. [L. Augustus. See note below, and August, a. ] The eighth month of the year, containing thirty-one days. The old Roman name was Sextilis, the sixth month from March, the month in which the primitive Romans, as well as Jews, began the year. The name was changed to August in honor of Augustus Caesar, the first emperor of Rome, on account of his victories, and his entering on his first consulate in that month.

Augustly
Au•gust´ly, adv. In an august manner.

Augustness
Au•gust´ness, n. The quality of being august; dignity of mien; grandeur; magnificence.

Auk, n. [Prov. E. alk; akin to Dan. alke, Icel. & Sw. alka.] (Zoöl.) A name given to various species of arctic sea birds of the family Alcidae. The great auk, now extinct, is Alca (or Plautus) impennis. The razor-billed auk is A. torda. See Puffin, Guillemot, and Murre.

Auld, a. [See Old.] Old; as Auld Reekie (old smoky), i. e., Edinburgh. [Scot. & Prov. Eng.]

Auletic
Au•let´ic, a. [L. auleticus, Gr., fr. flute.] Of or pertaining to a pipe (flute) or piper. [R.] Ash.

Aulic
Au´lic, a. [L. aulicus, Gr., fr. hall, court, royal court.] Pertaining to a royal court.
"Ecclesiastical wealth and aulic dignities." - Landor.
Aulic council (Hist.), a supreme court of the old German empire; properly the supreme court of the emperor. It ceased at the death of each emperor, and was renewed by his successor. It became extinct when the German empire was dissolved, in 1806. The term is now applied to a council of the war department of the Austrian empire, and the members of different provincial chanceries of that empire are called aulic councilors. P. Cyc.

Aulic
Au´lic, n. The ceremony observed in conferring the degree of doctor of divinity in some European universities. It begins by a harangue of the chancellor addressed to the young doctor, who then receives the cap, and presides at the disputation (also called the aulic).

Auln, n. An ell. [Obs.] See Aune. { Aul´nage, Aul´na•ger } n. See Alnage and Alnager.

Aumbry
Aum´bry, n. Same as Ambry.

Auncetry
Aun´cet•ry, n. Ancestry. [Obs.] Chaucer.

Aune, n. [F. See Alnage.] A French cloth measure, of different parts of the country (at Paris, 0.95 of an English ell); — now superseded by the meter.

Aura
Au´ra, n. ; pl. Aurae . [L. aura air, akin to Gr. .]
1. Any subtile, invisible emanation, effluvium, or exhalation from a substance, as the aroma of flowers, the odor of the blood, a supposed fertilizing emanation from the pollen of flowers, etc.
2. (Med.) The peculiar sensation, as of a light vapor, or cold air, rising from the trunk or limbs towards the head, a premonitory symptom of epilepsy or hysterics. Electric aura, a supposed electric fluid, emanating from an electrified body, and forming a mass surrounding it, called the electric atmosphere. See Atmosphere, 2.

Aurantiaceous
Au•ran•ti•a´ceous, a. Pertaining to, or resembling, the Aurantiaceae, an order of plants (formerly considered natural), of which the orange is the type.

Aurate
Au´rate, n. [L. auratus, p. p. of aurare to gild, fr. aurum gold: cf. F. aurate.] (Chem.) A combination of auric acid with a base; as aurate or potassium.

Aurated
Au´ra•ted, a. [See Aurate.]
1. Resembling or containing gold; gold-colored; gilded.
2. (Chem.) Combined with auric acid.

Aurated
Au´ra•ted, a. Having ears. See Aurited.

Aurelia
Au•re´li•a ( 106), n. [NL., fr. L. aurum gold: cf. F. aurelie. Cf. Chrysalis.] (Zoöl.) (a) The chrysalis, or pupa of an insect, esp. when reflecting a brilliant golden color, as that of some of the butterflies. (b) A genus of jellyfishes. See Discophora.

Aurichalceous
Au•ri•chal´ce•ous, a. [L. aurichalcum, for orichalcum brass.] (Zoöl.) Brass-colored.

Aurichalcite
Au•ri•chal´cite, n. [See Aurichalceous.] (Min.) A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction.

Auricula
Au•ric´u•la, n. ; pl. L. Auriculae, E. Auriculas . [L. auricula. See Auricle.]
1. (Bot.) (a) A species of Primula, or primrose, called also from the shape of its leaves, bear’s-ear. (b) (b) A species of Hirneola ( H. auricula), a membranaceous fungus, called also auricula Judae, or Jew’s-ear. P. Cyc.
2. (Zoöl.) (a) A genus of air-breathing mollusks mostly found near the sea, where the water is brackish (b) One of the five arched processes of the shell around the jaws of a sea urchin.

Auricularly
Au•ric´u•lar•ly, adv. In an auricular manner.

Auriculars
Au•ric´u•lars, n. pl. (Zoöl.) A circle of feathers surrounding the opening of the ear of birds. { Au•ric´u•late, Au•ric´u•la•ted } a. [See Auricle.] (Biol.) Having ears or appendages like ears; eared. Esp.: (a) (Bot.) Having lobes or appendages like the ear; shaped like the ear; auricled. (b) (Zoöl.) Having an angular projection on one or both sides, as in certain bivalve shells, the foot of some gastropods, etc. Auriculate leaf, one having small appended leaves or lobes on each side of its petiole or base.

Auriflamme
Au´ri•flamme, n. See Oriflamme.

Auriga
Au•ri´ga, n. [L., charioteer.] (Anat.) The Charioteer, or Wagoner, a constellation in the northern hemisphere, situated between Perseus and Gemini. It contains the bright star Capella.

Aurigal
Au•ri´gal, a. [L. aurigalis.] Of or pertaining to a chariot. [R.]

Aurigation
Au•ri•ga´tion, n. [L. aurigatio, fr. aurigare to be a charioteer, fr. auriga.] The act of driving a chariot or a carriage. [R.] De Quincey.

Aurigraphy
Au•rig´ra•phy, n. [L. aurum gold + -graphy.] The art of writing with or in gold.

Aurilave
Au•ri•lave, n. [L. auris ear + lavare to wash.] An instrument for cleansing the ear, consisting of a small piece of sponge on an ivory or bone handle.

Aurin
Au´rin (a"rin), n. [L. aurum gold.] (Chem.) A red coloring matter derived from phenol; — called also in commerce, yellow corallin.

Auriphrygiate
Au•ri•phryg´i•ate (a•ri•fri"ji•at), a. [LL. auriphrigiatus; L. aurum gold + LL. phrygiare to adorn with Phrygian needlework, or with embroidery; perhaps corrupted from some other word. Cf. Orfrays.] Embroidered or decorated with gold. [R.] Southey.

Auriscope
Au´ri•scope (-skop), n. [L. auris + -scope.] (Med.) An instrument for examining the condition of the ear.

Auriscopy
Au•ris´co•py (a•ris"ko•py), n. Examination of the ear by the aid of the auriscope.

Aurist
Au´rist (a"rist), n. [L. auris ear.] One skilled in treating and curing disorders of the ear.

Aurited
Au´ri•ted, a. [L. auritus, fr. auris ear.] (Zoöl.) Having lobes like the ear; auriculate.

Aurivorous
Au•riv´o•rous, a. [L. aurum gold + vorare to devour.] Gold-devouring. [R.] H. Walpole.

Aurocephalous
Au•ro•ceph´a•lous, a. [ Aurum + cephalous.] (Zoöl.) Having a gold-colored head.

Aurochloride
Au•ro•chlo´ride, n. [ Aurum + chloride.] (Chem.) The trichloride of gold combination with the chloride of another metal, forming a double chloride; — called also chloraurate.

Aurochs
Au´rochs (a"roks), n. [G. auerochs, OHG. urohso; ur (cf. AS. ur) + ohso ox, G. ochs. Cf. Owre, Ox.] (Zoöl.) The European bison ( Bison bonasus, or Europaeus), once widely distributed, but now nearly extinct, except where protected in the Lithuanian forests, and perhaps in the Caucasus. It is distinct from the Urus of Caesar, with which it has often been confused.

Aurora
Au•ro´ra, n. ; pl. E. Auroras, L. (rarely used) Aurorae . [L. aurora, for ausosa, akin to Gr.,, dawn, Skr. ushas, and E. east.]
1. The rising light of the morning; the dawn of day; the redness of the sky just before the sun rises.
2. The rise, dawn, or beginning. Hawthorne.
3. (Class. Myth.) The Roman personification of the dawn of day; the goddess of the morning. The poets represented her a rising out of the ocean, in a chariot, with rosy fingers dropping gentle dew.
4. (Bot.) A species of crowfoot. Johnson.
5. The aurora borealis or aurora australis (northern or southern lights). Aurora borealis, i. e., northern daybreak; popularly called northern lights. A luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. This species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called the corona, about a spot in the heavens toward which the dipping needle points. Occasionally the aurora appears as an arch of light across the heavens from east to west. Sometimes it assumes a wavy appearance, and the streams of light are then called merry dancers. They assume a variety of colors, from a pale red or yellow to a deep red or blood color. The Aurora australis is a corresponding phenomenon in the southern hemisphere, the streams of light ascending in the same manner from near the southern horizon.

Auroral
Au•ro´ral, a. Belonging to, or resembling, the aurora (the dawn or the northern lights); rosy.
"Her cheeks suffused with an auroral blush." - Longfellow.

Aurous
Au´rous, a.
1. Containing gold.
2. (Chem.) Pertaining to, or derived from, gold; — said of those compounds of gold in which this element has its lower valence; as aurous oxide.

Aurum
Au´rum, n. [L.] Gold. Aurum fulminans . See Fulminate. — Aurum mosaicum . See Mosaic.

Auscultate
Aus´cul•tate, v. i. & t. To practice auscultation; to examine by auscultation.

Auscultation
Aus•cul•ta´tion, n. [L. ausculcatio, fr. auscultare to listen, fr. a dim. of auris, orig. ausis, ear. See Auricle, and cf. Scout, n. ]
1. The act of listening or hearkening to. Hickes.
2. (Med.) An examination by listening either directly with the ear (immediate auscultation) applied to parts of the body, as the abdomen; or with the stethoscope (mediate auscultation), in order to distinguish sounds recognized as a sign of health or of disease.

Auscultatory
Aus•cul´ta•to•ry, a. Of or pertaining to auscultation. Dunglison.

Ausonian
Au•so´ni•an, a. [L. Ausonia, poetic name for Italy.] Italian. Milton.

Auspicate
Aus´pi•cate, a. [L. auspicatus, p. p. of auspicari to take auspices, fr. auspex a bird seer, an augur, a contr. of avispex; avis bird + specere, spicere, to view. See Aviary, Spy.] Auspicious. [Obs.] Holland.

Auspicate
Aus´pi•cate, v. t.
1. To foreshow; to foretoken. [Obs.] B. Jonson.
2. To give a favorable turn to in commencing; to inaugurate; — a sense derived from the Roman practice of taking the auspicium, or inspection of birds, before undertaking any important business.
"They auspicate all their proceedings." - Burke.

Auspice
Aus´pice, n. ; pl. Auspices . [L. auspicium, fr. auspex: cf. F. auspice. See Auspicate, a. ]
1. A divining or taking of omens by observing birds; an omen as to an undertaking, drawn from birds; an augury; an omen or sign in general; an indication as to the future.
2. Protection; patronage and care; guidance.
"Which by his auspice they will nobler make." - Dryden.
In this sense the word is generally plural, auspices; as under the auspices of the king.

Auspicious
Aus•pi´cious, a. [See Auspice.]
1. Having omens or tokens of a favorable issue; giving promise of success, prosperity, or happiness; predicting good; as an auspicious beginning.
"Auspicious union of order and freedom." - Macaulay.
2. Prosperous; fortunate; as auspicious years. "Auspicious chief." Dryden.
3. Favoring; favorable; propitious; — applied to persons or things. "Thy auspicious mistress." Shak. "Auspicious gales." Pope.
Syn. — See Propitious. — Aus•pi´cious•ly, adv. — Aus•pi´cious•ness, n.

Austere
Aus•tere´, [F. austère, L. austerus, fr. Gr., fr. to parch, dry. Cf. Sear.]
1. Sour and astringent; rough to the state; having acerbity; as an austere crab apple; austere wine.
2. Severe in modes of judging, or living, or acting; rigid; rigorous; stern; as an austere man, look, life.
"From whom the austere Etrurian virtue rose." - Dryden.
3. Unadorned; unembellished; severely simple.
Syn. — Harsh; sour; rough; rigid; stern; severe; rigorous; strict.

Austereness
Aus•tere´ness, n.
1. Harshness or astringent sourness to the taste; acerbity. Johnson.
2. Severity; strictness; austerity. Shak.

Austerity
Aus•ter´i•ty, n. ; pl. Austerities . [F. austerite, L. austerias, fr. austerus. See Austere.]
1. Sourness and harshness to the taste. [Obs.] Horsley.
2. Severity of manners or life; extreme rigor or strictness; harsh discipline.
"The austerity of John the Baptist." - Milton.
3. Plainness; freedom from adornment; severe simplicity.
"Partly owing to the studied austerity of her dress, and partly to the lack of demonstration in her manners." - Hawthorne.

Austral
Aus´tral, a. [L. australis, fr. auster: cf. F. austral.] Southern; lying or being in the south; as austral land; austral ocean. Austral signs (Astron.), the last six signs of the zodiac, or those south of the equator.

Austral
Aus´tral, a. (Biogeography) Designating, or pert. to, a zone extending across North America between the Transition and Tropical zones, and including most of the United States and central Mexico except the mountainous parts.

Australasian
Aus•tral•a´sian, a. Of or pertaining to Australasia; as Australasian regions. — n. A native or an inhabitant of Australasia.

Australian
Aus•tra´li•an, a. [From L. Terra Australis southern land.] Of or pertaining to Australia. — n. A native or an inhabitant of Australia.

Australian ballot
Aus•tra"li•an bal"lot. (Law) A system of balloting or voting in public elections, originally used in South Australia, in which there is such an arrangement for polling votes that secrecy is compulsorily maintained, and the ballot used is an official ballot printed and distributed by the government.

Australize
Aus´tral•ize, v. i. [See Austral.] To tend toward the south pole, as a magnet. [Obs.]
"They [magnets] do septentrionate at one extreme, and australize at another." - Sir T. Browne.

Austrine
Aus´trine, n. [L. austrinus, from auster south.] Southern; southerly; austral. [Obs.] Bailey.

Austro-Hungarian
Aus´tro-Hun•ga´ri•an, a. Of or pertaining to the monarchy composed of Austria and Hungary.

Austromancy
Aus´tro•man•cy, n. [L. auster south wind + -mancy.] Soothsaying, or prediction of events, from observation of the winds.

Auszug
Aus´zug (ous"tsook), n. ; Ger. pl.-zÜge (-tsü•ge). [G.] See Army organization, Switzerland.

Authentic
Au•then´tic, a. [OE. autentik, OF. autentique, F. authentique, L. authenticus coming from the real author, of original or firsthand authority, from Gr., fr. suicide, a perpetrator or real author of any act, an absolute master; a’yto•s self + a form "enths (not found), akin to L. sons and perh. orig. from the p. pr. of e’i^nai to be, root a. , and meaning the one it really is. See Am, Sin, n. , and cf. Effendi.]
1. Having a genuine original or authority, in opposition to that which is false, fictitious, counterfeit, or apocryphal; being what it purports to be; genuine; not of doubtful origin; real; as an authentic paper or register.
"To be avenged On him who had stole Jove’s authentic fire." - Milton.
2. Authoritative. [Obs.] Milton.
3. Of approved authority; true; trustworthy; credible; as an authentic writer; an authentic portrait; authentic information.
4. (Law) Vested with all due formalities, and legally attested.
5. (Mus.) Having as immediate relation to the tonic, in distinction from plagal, which has a correspondent relation to the dominant in the octave below the tonic.
Syn. — Authentic, Genuine. These words, as here compared, have reference to historical documents. We call a document genuine when it can be traced back ultimately to the author or authors from whom it professes to emanate. Hence, the word has the meaning, "not changed from the original, uncorrupted, unadulterated:" as a genuine text. We call a document authentic when, on the ground of its being thus traced back, it may be relied on as true and authoritative (from the primary sense of "having an author, vouched for"); hence its extended signification, in general literature, of trustworthy, as resting on unquestionable authority or evidence; as an authentic history; an authentic report of facts.
"A genuine book is that which was written by the person whose name it bears, as the author of it. An authentic book is that which relates matters of fact as they really happened. A book may be genuine without being, authentic, and a book may be authentic without being genuine." - Bp. Watson.
It may be said, however, that some writers use authentic (as an authentic document) in the sense of "produced by its professed author, not counterfeit."

Authentic
Au•then´tic, n. An original (book or document). [Obs.] "Authentics and transcripts." Fuller.

Authentical
Au•then´tic•al, a. Authentic. [Archaic]

Authentically
Au•then´tic•al•ly, adv. In an authentic manner; with the requisite or genuine authority.

Authenticalness
Au•then•tic•al•ness, n. The quality of being authentic; authenticity. [R.] Barrow.

Authenticate
Au•then´ti•cate, v. t. [ imp. & p. p. Authenticated ; p. pr. & vb. n. Authenticating .] [Cf. LL. authenticare.]
1. To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.
"The king serves only as a notary to authenticate the choice of judges." - Burke.
2. To prove authentic; to determine as real and true; as to authenticate a portrait. Walpole.

Authenticly
Au•then´tic•ly, adv. Authentically.

Authenticness
Au•then´tic•ness, n. The quality of being authentic; authenticity. [R.] Hammond.

Authentics
Au•then´tics, n. (Ciwil Law) A collection of the Novels or New Constitutions of Justinian, by an anonymous author; — so called on account of its authenticity. Bouvier.

Author
Au´thor (a"ther), n. [OE. authour, autour, OF. autor, F. auteur, fr. L. auctor, sometimes, but erroneously, written autor or author, fr. augere to increase, to produce. See Auction, n. ]
1. The beginner, former, or first mover of anything; hence, the efficient cause of a thing; a creator; an originator.
"Eternal King; thee, Author of all being." - Milton.
2. One who composes or writes a book; a composer, as distinguished from an editor, translator, or compiler.
"The chief glory of every people arises from its authors." - Johnson.
3. The editor of a periodical. [Obs.]
4. An informant. [Archaic] Chaucer.

Author
Au´thor (a"ther), v. t.
1. To occasion; to originate. [Obs.]
"Such an overthrow … I have authored." - Chapman.
2. To tell; to say; to declare. [Obs.]
"More of him I dare not author." - Massinger.

Authoress
Au´thor•ess, n. A female author. Glover. The word is not very much used, author being commonly applied to a female writer as well as to a male.

Authorial
Au•tho´ri•al, a. Of or pertaining to an author. "The authorial we.’" Hare.

Authorism
Au´thor•ism (a"ther•iz’m), n. Authorship. [R.]

Authoritative
Au•thor´i•ta•tive, a.
1. Having, or proceeding from, due authority; entitled to obedience, credit, or acceptance; determinate; commanding.
"The sacred functions of authoritative teaching." - Barrow.
2. Having an air of authority; positive; dictatorial; peremptory; as an authoritative tone.
"The mock authoritative manner of the one, and the insipid mirth of the other." - Swift.
— Au•thor´i•ta•tive•ly, adv. — Au•thor´i•ta•tive•ness, n.

Authority
Au•thor´i•ty, n. ; pl. Authorities . [OE. autorite, auctorite, F. autorite, fr. L. auctoritas, fr. auctor. See Author, n. ]
1. Legal or rightful power; a right to command or to act; power exercised buy a person in virtue of his office or trust; dominion; jurisdiction; authorization; as the authority of a prince over subjects, and of parents over children; the authority of a court.
"Thus can the demigod, Authority, Make us pay down for our offense." - Shak.
"By what authority doest thou these things ?" - Matt. xxi. 23.
2. Government; the persons or the body exercising power or command; as the local authorities of the States; the military authorities. [Chiefly in the plural.]
3. The power derived from opinion, respect, or esteem; influence of character, office, or station, or mental or moral superiority, and the like; claim to be believed or obeyed; as an historian of no authority; a magistrate of great authority.
4. That which, or one who, is claimed or appealed to in support of opinions, actions, measures, etc. Hence: (a) Testimony; witness. "And on that high authority had believed." Milton. (b) A precedent; a decision of a court, an official declaration, or an opinion, saying, or statement worthy to be taken as a precedent. (c) A book containing such a statement or opinion, or the author of the book. (d) Justification; warrant.
"Wilt thou be glass wherein it shall discern Authority for sin, warrant for blame." - Shak.

Authorization
Au•thor•i•za´tion, n. [Cf. F. autorisation.] The act of giving authority or legal power; establishment by authority; sanction or warrant.
"The authorization of laws." - Motley.
"A special authorization from the chief." - Merivale.

Authorize
Au´thor•ize, v. t. [ imp. & p. p. Authorized ; p. pr. & vb. n. Authorizing.] [OE. autorize, F. autoriser, fr. LL. auctorizare, authorisare. See Author.]
1. To clothe with authority, warrant, or legal power; to give a right to act; to empower; as to authorize commissioners to settle a boundary.
2. To make legal; to give legal sanction to; to legalize; as to authorize a marriage.
3. To establish by authority, as by usage or public opinion; to sanction; as idioms authorized by usage.
4. To sanction or confirm by the authority of some one; to warrant; as to authorize a report.
"A woman’s story at a winter’s fire, Authorized by her grandam." - Shak.
5. To justify; to furnish a ground for. Locke. To authorize one’s self, to rely for authority. [Obs.]
"Authorizing himself, for the most part, upon other histories. Sir P. Sidney. "

Authorizer
Au´thor•i•zer, n. One who authorizes.

Authorless
Au´thor•less, a. Without an author; without authority; anonymous.

Authorly
Au´thor•ly, a. Authorial. [R.] Cowper.

Authorship
Au´thor•ship, n.
1. The quality or state of being an author; function or dignity of an author.
2. Source; origin; origination; as the authorship of a book or review, or of an act, or state of affairs.

Authotype
Au´tho•type, n. A type or block containing a facsimile of an autograph. Knight.

Auto-
Au´to- . [Gr. self.] A combining form, with the meaning of self, one’s self, one’s own, itself, its own.

Auto-
Au´to- An abbrev. of automobile, used as a prefix with the meaning of self-moving, self- propelling; as an autocar, an autocarriage, an autotruck, etc., an automobile car, carriage, truck, etc.

Autobiographer
Au•to•bi•og´ra•pher, n. [ Auto- + biographer.] One who writers his own life or biography. { Au•to•bi•o•graph´ic, Au•to•bi•o•graph´ic•al, } a. Pertaining to, or containing, autobiography; as an autobiographical sketch. "Such traits of the autobiographic sort." Carlyle. — Au•to•bi•o•graph´ic•al•ly, adv.

Autobiographist
Au•to•bi•og´ra•phist, n. One who writes his own life; an autobiographer. [R.]

Autobiography
Au•to•bi•og´ra•phy, n. ; pl. Autobiographies . [ Auto- + biography.] A biography written by the subject of it; memoirs of one’s life written by one’s self. { Au•to•car´pous, Au•to•car´pi•an } a. [ Auto- + Gr. karpo•s fruit.] (Bot.) Consisting of the ripened pericarp with no other parts adnate to it, as a peach, a poppy capsule, or a grape.

Autocatalysis
Au•to•ca•tal´y•sis, n. [ Auto- + catalysis.] (Chem.) Self-catalysis; catalysis of a substance by one of its own products, as of silver oxide by the silver formed by reduction of a small portion of it. — Au•to•cat•a•lyt´ic (#), a.

Autocephalous
Au•to•ceph´a•lous, a. [Gr. independent; self + head.] (Eccl. Hist.) Having its own head; independent of episcopal or patriarchal jurisdiction, as certain Greek churches.

Autochronograph
Au•to•chron´o•graph, n. [ Auto- + chronograph.] An instrument for the instantaneous self- recording or printing of time. Knight.

Autochthon
Au•toch´thon, n. ; pl. E. Authochthons, L. Autochthones . [L., fr. Gr., pl., from the land itself; a’yto•s self + earth, land.]
1. One who is supposed to rise or spring from the ground or the soil he inhabits; one of the original inhabitants or aborigines; a native; — commonly in the plural. This title was assumed by the ancient Greeks, particularly the Athenians.
2. That which is original to a particular country, or which had there its origin. { Au•toch´tho•nal, Au•thoch•thon´ic, Au•toch´tho•nous } a. Aboriginal; indigenous; native.

Autochthonism
Au•toch´tho•nism, n. The state of being autochthonal.

Autochthony
Au•toch´tho•ny, n. An aboriginal or autochthonous condition.

Autoclastic
Au•to•clas´tic, a. [See Auto- ; Clastic.] (Geol.) Broken in place; — said of rocks having a broken or brecciated structure due to crushing, in contrast to those of brecciated materials brought from a distance.

Autocoherer
Au•to•co•her´er, n. [ Auto- + coherer.] (Wireless Teleg.) A self-restoring coherer, as a microphonic detector.

Autocracy
Au•toc´ra•cy, n. ; pl. Autocracies. [Gr. : cf. F. autocratie. See Autocrat.]
1. Independent or self-derived power; absolute or controlling authority; supremacy.
"The divine will moves, not by the external impulse or inclination of objects, but determines itself by an absolute autocracy." - South.
2. Supreme, uncontrolled, unlimited authority, or right of governing in a single person, as of an autocrat.
3. Political independence or absolute sovereignty (of a state); autonomy. Barlow.
4. (Med.) The action of the vital principle, or of the instinctive powers, toward the preservation of the individual; also the vital principle. [In this sense, written also autocrasy.] Dunglison.

Autocratorical
Au•to•cra•tor´ic•al, a. Pertaining to an autocrator; absolute. [Obs.] Bp. Pearson.

Autocratrix
Au•toc´ra•trix, n. [NL.] A female sovereign who is independent and absolute; — a title given to the empresses of Russia.

Autocratship
Au´to•crat•ship, n. The office or dignity of an autocrat.

Auto-da-fe
Au´to-da-fe´, n. ; pl. Autos-da-fe . [Pg., act of the faith; auto act, fr. L. actus + da of the + fe faith, fr. L. fides.]
1. A judgment of the Inquisition in Spain and Portugal condemning or acquitting persons accused of religious offenses.
2. An execution of such sentence, by the civil power, esp. the burning of a heretic. It was usually held on Sunday, and was made a great public solemnity by impressive forms and ceremonies.
3. A session of the court of Inquisition.

Auto-de-fe
Au´to-de-fe´, n. ; pl. Autos-de-fe. [Sp., act of faith.] Same as Auto- da-fe.

Autodynamic
Au•to•dy•nam´ic, a. [ Auto- + dynamic.] Supplying its own power; — applied to an instrument of the nature of a water-ram.

Autodynamic
Au•to•dy•nam´ic, a. [ Auto- + dynamic.] Supplying its own power, as a hydraulic ram.

Autœcious
Au•tœ"cious, a. [ Auto- + Gr. house.] (Biol.) Passing through all its stages on one host, as certain parasitic fungi; — contrasted with heterœcious.

Autœcism
Au•tœ"cism, n. Quality of being autœcious.

Autofecundation
Au•to•fec•un•da´tion, n. [ Auto- + fecundation.] (Biol.) Self-impregnation. Darwin.

Autogamous
Au•tog´a•mous, a. (Bot.) Characterized by autogamy; self-fertilized.

Autogamy
Au•tog´a•my, n. [ Auto- + Gr. marriage.] (Bot.) Self-fertilization, the fertilizing pollen being derived from the same blossom as the pistil acted upon.

Autogeneal
Au•to•ge´ne•al, a. Self-produced; autogenous.

Autogenesis
Au•to•gen´e•sis, n. [ Auto- + genesis.] (Biol.) Spontaneous generation.

Autogenetic
Au•to•ge•net´ic, a. (Biol.) Relating to autogenesis; self-generated.

Autogenetic
Au•to•ge•net´ic, a. (Phys. Geog.) Pertaining to, controlled by, or designating, a system of self- determined drainage.

Autogenetic drainage. (Phys. Geog.) A system of natural drainage developed by the constituent streams through headwater erosion.

Autogenetic topography. (Phys. Geog.) A system of land forms produced by the free action of rain and streams on rocks of uniform texture.

Autogenous
Au•tog´e•nous, a. [Gr. ; self + root of to be born.]
1. (Biol.) Self- generated; produced independently.
2. (Anat.) Developed from an independent center of ossification. Owen. Autogenous soldering, the junction by fusion of the joining edges of metals without the intervention of solder.

Autogenous
Au•tog´e•nous, a. Autogenetic.

Autogenously
Au•tog´e•nous•ly, adv. In an autogenous manner; spontaneously.

Autograph
Au´to•graph, n. [F. autographe, fr. Gr. autographic; self + to write.] That which is written with one’s own hand; an original manuscript; a person’s own signature or handwriting.

Autograph
Au´to•graph, a. In one’s own handwriting; as an autograph letter; an autograph will.

Autographal
Au•tog´ra•phal, a. Autographic. [Obs.] { Au•to•graph´ic, Au•to•graph´ic•al } a.
1. Pertaining to an autograph, or one’s own handwriting; of the nature of an autograph.
2. Pertaining to, or used in, the process of autography; as autographic ink, paper, or press.

Autography
Au•tog´ra•phy, n. [Cf. F. autographie.]
1. The science of autographs; a person’s own handwriting; an autograph.
2. A process in lithography by which a writing or drawing is transferred from paper to stone. Ure.

Autoharp
Au´to•harp, n. [ Auto- + harp.] A zitherlike musical instrument, provided with dampers which, when depressed, deaden some strings, leaving free others that form a chord.

Autohypnotic
Au•to•hyp•not´ic, a. Pert. to autohypnotism; self-hypnotizing. — n. An autohypnotic person.

Autohypnotism
Au•to•hyp´no•tism, n. [ Auto- + hypnotism.] Hypnotism of one’s self by concentration of the attention on some object or idea.

Auto-infection
Au•to-in•fec´tion, n. [ Auto- + infection.] (Med.) Poisoning caused by a virus that originates and develops in the organism itself.

Auto-inoculation
Au•to-in•oc•u•la´tion, n. [ Auto- + inoculation.] (Med.) Inoculation of a person with virus from his own body.

Auto-intoxication
Au•to-in•tox•i•ca´tion, n. [ Auto- + intoxication.] (Med.) Poisoning, or the state of being poisoned, from toxic substances produced within the body; autotoxaemia.

Autokinesis
Au•to•ki•ne´sis, n. [NL.; auto- + Gr. motion.] (Physiol.) Spontaneous or voluntary movement; movement due to an internal cause.

Autokinetic
Au•to•ki•net´ic, a. [ Auto- + kinetic.] Self-moving; moving automatically.

Autokinetic system. In fire-alarm telegraphy, a system so arranged that when one alarm is being transmitted, no other alarm, sent in from another point, will be transmitted until after the first alarm has been disposed of.

Autolatry
Au•tol´a•try, n. [ Auto- + Gr. worship.] Self-worship. Farrar.

Automath
Au´to•math, n. [Gr. ; self +,, to learn.] One who is self-taught. [R.] Young. { Au•to•mat´ic, Au•to•mat´ic•al } a. [Cf. F. automatique. See Automaton.]
1. Having an inherent power of action or motion.
"Nothing can be said to be automatic." - Sir H. Davy.
2. Pertaining to, or produced by, an automaton; of the nature of an automaton; self-acting or self-regulating under fixed conditions; — esp. applied to machinery or devices in which certain things formerly or usually done by hand are done by the machine or device itself; as the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse.
3. Not voluntary; not depending on the will; mechanical; as automatic movements or functions.
"Unconscious or automatic reasoning." - H. Spenser.
Automatic arts, such economic arts or manufacture as are carried on by self-acting machinery. Ure.

Automatism
Au•tom´a•tism, n. The state or quality of being automatic; the power of self-moving; automatic, mechanical, or involuntary action. (Metaph.) A theory as to the activity of matter.

Automaton
Au•tom´a•ton, n. ; pl. L. Automata, E. Automatons . [L. fr. Gr., neut. of self-moving; self + a root ma, man, to strive, think, cf. to strive. See Mean, v. i.]
1. Any thing or being regarded as having the power of spontaneous motion or action. Huxley.
"So great and admirable an automaton as the world." - Boyle.
"These living automata, human bodies." - Boyle.
2. A self-moving machine, or one which has its motive power within itself; — applied chiefly to machines which appear to imitate spontaneously the motions of living beings, such as men, birds, etc.

Automobile
Au•to•mo´bile, n. [F.] An automobile vehicle or mechanism; esp., a self-propelled vehicle suitable for use on a street or roadway. Automobiles are usually propelled by internal combustion engines (using volatile inflammable liquids, as gasoline or petrol, alcohol, naphtha, etc.), steam engines, or electric motors. The power of the driving motor varies from about 4 to 50 H. P. for ordinary vehicles, ranging from the run- about to the touring car, up to as high as 200 H. P. for specially built racing cars. Automobiles are also commonly, and generally in British usage, called motor cars.

Automobilism
Au•to•mo´bil•ism, n. The use of automobiles, or the practices, methods, or the like, of those who use them. — Au•to•mo´bil•ist, n.

Automorphic
Au•to•mor´phic, a. [ Auto- + Gr. for, shape.] Patterned after one’s self.
"The conception which any one frames of another’s mind is more or less after the pattern of his own mind, — is automorphic." - H. Spenser.

Automorphism
Au•to•mor´phism, n. Automorphic characterization. H. Spenser.

Autonomasy
Au•to•nom´a•sy, n. [ Auto- + Gr. a name, fr. a name; or for E. antonomasia.] (Rhet.) The use of a word of common or general signification for the name of a particular thing; as "He has gone to town," for, "He has gone to London."

Autonomic
Au•to•nom´ic, a. Having the power of self-government; autonomous. Hickok.

Autonomist
Au´ton´o•mist, n. [Cf. F. automiste. See Autonomy.] One who advocates autonomy.

Autonomy
Au•ton´o•my, n. [Gr. : cf. F. autonomie. See Autonomous.]
1. The power or right of self-government; self-government, or political independence, of a city or a state.
2. (Metaph.) The sovereignty of reason in the sphere of morals; or man’s power, as possessed of reason, to give law to himself. In this, according to Kant, consist the true nature and only possible proof of liberty. Fleming.

Autophagy
Au•toph´a•gy, n. [Gr. self + to eat.] (Med.) The feeding of the body upon itself, as in fasting; nutrition by consumption of one’s own tissues.

Autophoby
Au•toph´o•by, n. [ Auto- + Gr. fear.] Fear of one’s self; fear of being egotistical. [R.] Hare.

Autophony
Au•toph´o•ny, n. [ Auto- + Gr. a sound.] (Med.) An auscultatory process, which consists in noting the tone of the observer’s own voice, while he speaks, holding his head close to the patient’s chest. Dunglison.

Autoplastic
Au•to•plas´tic, a. Of or pertaining to autoplasty.

Autoplasty
Au´to•plas•ty, n. [ Auto- + - plasty.] (Surg.) The process of artificially repairing lesions by taking a piece of healthy tissue, as from a neighboring part, to supply the deficiency caused by disease or wounds. { Au•top´sic, Au•top´sic•al } a. Pertaining to autopsy; autoptical. [Obs.]

Autopneumatic
Au•to•pneu•mat´ic, a. [ Auto- + pneumatic.] Acting or moving automatically by means of compressed air.

Autopsorin
Au•top´so•rin, n. [ Auto- + Gr. the itch.] (Med.) That which is given under the doctrine of administering a patient’s own virus.

Autopsy
Au´top•sy, n. [Gr., fr. seen by one’s self; self + seen: cf. F. autopsie. See Optic, a. ]
1. Personal observation or examination; seeing with one’s own eyes; ocular view.
"By autopsy and experiment." - Cudworth.
2. (Med.) Dissection of a dead body, for the purpose of ascertaining the cause, seat, or nature of a disease; a post- mortem examination. { Au•top´tic (a•top"tik), Au•top´tic•al (-tik• al), } a. [Gr. a’ytoptiko•s: cf. F. autoptique.] Seen with one’s own eyes; belonging to, or connected with, personal observation; as autoptic testimony or experience.

Autostylic
Au•to•styl´ic, a. [ Auto- + Gr. sty^los pillar.] (Anat.) Having the mandibular arch articulated directly to the cranium, as in the skulls of the Amphibia.

Autosuggestion
Au•to•sug•ges´tion, n. [ Auto- + suggestion.] (Med.) Self-suggestion as distinguished from suggestion coming from another, esp. in hypnotism. Autosuggestion is characteristic of certain mental conditions in which expectant belief tends to produce disturbance of function of one or more organs.

Autotheism
Au´to•the•ism, n. [ Auto- + theism.]
1. The doctrine of God’s self- existence. [R.]
2. Deification of one’s self; self-worship. [R.]

Autotheist
Au´to•the•ist, n. One given to self- worship. [R.]

Autotoxaemia
Au•to•tox•ae´mi•a, -tox•e´mi•a, n. [NL. See Auto-, and Toxaemia.] (Physiol.) Self-intoxication. See Auto- intoxication.

Autotoxication
Au•to•tox•i•ca´tion, n. [ Auto- + toxication.] (Physiol.) Same as Auto- intoxication.

Autotrophic
Au•to•troph´ic, a. [ Auto- + trophic.] (Plant Physiol.) Capable of self- nourishment; — said of all plants in which photosynthetic activity takes place, as opposed to parasitism or saprophytism.

Autotropism
Au•tot´ro•pism, n. [ Auto- + Gr. to turn.] (Plant Physiol.) The tendency of plant organs to grow in a straight line when uninfluenced by external stimuli.

Autotype
Au´to•type, n. [ Auto- + - type: cf. F. autotype.]
1. A facsimile.
2. A photographic picture produced in sensitized pigmented gelatin by exposure to light under a negative; and subsequent washing out of the soluble parts; a kind of picture in ink from a gelatin plate.

Autotypography
Au•to•ty•pog´ra•phy, n. [ Auto- + typography.] A process resembling "nature printing," by which drawings executed on gelatin are impressed into a soft metal plate, from which the printing is done as from copperplate.

Autotypy
Au•tot´y•py, n. The art or process of making autotypes.

Autumn
Au´tumn, n. [L. auctumnus, autumnus, perh. fr. a root a. to satisfy one’s self: cf. F. automne. See Avarice.]
1. The third season of the year, or the season between summer and winter, often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November. In England, according to Johnson, autumn popularly comprises August, September, and October. In the southern hemisphere, the autumn corresponds to our spring.
2. The harvest or fruits of autumn. Milton.
3. The time of maturity or decline; latter portion; third stage.
"Dr. Preston was now entering into the autumn of the duke’s favor." - Fuller.
"Life’s autumn past, I stand on winter’s verge." - Wordsworth.

Autunite
Au´tun•ite, n. [From Autun, France, its locality.] (Min.) A lemon-yellow phosphate of uranium and calcium occurring in tabular crystals with basal cleavage, and in micalike scales. H., 2-2.5. Sp. gr., 3.05-3.19.

Auxanometer
Aux•a•nom´e•ter, n. [Gr. to cause to increase + -meter.] An instrument to measure the growth of plants. Goodale.

Auxesis
Aux•e´sis, n. [NL., Gr. increase, fr.,, to increase.] (Rhet.) A figure by which a grave and magnificent word is put for the proper word; amplification; hyperbole.

Auxetic
Aux•et´ic, a. [Gr. .] Pertaining to, or containing, auxesis; amplifying.

Auxetophone
Aux•e´to•phone, n. [Gr. that may be increased + sound, voice.] A pneumatic reproducer for a phonograph, controlled by the recording stylus on the principle of the relay. It produces much clearer and louder tones than does the ordinary vibrating disk reproducer.

Auxiliar
Aux•il´iar ( 106), a. [L. auxiliaris: cf. F. auxiliaire. See Auxiliary.] Auxiliary. [Archaic]
"The auxiliar troops and Trojan hosts appear." - Pope.

Auxiliar
Aux•il´iar, n. An auxiliary. [Archaic] Milton.

Auxiliarly
Aux•il´iar•ly, adv. By way of help. Harris.

Auxiliary
Aux•il´ia•ry ( 106), a. [L. auxiliarius, fr. auxilium help, aid, fr. augere to increase.] Conferring aid or help; helping; aiding; assisting; subsidiary; as auxiliary troops. Auxiliary scales (Mus.), the scales of relative or attendant keys. See under Attendant, a. — Auxiliary verbs (Gram.). See Auxiliary, n. , 3.

Auxiliary
Aux•il´ia•ry, n. ; pl. Auxiliaries .
1. A helper; an assistant; a confederate in some action or enterprise.
2. (Mil.) pl. Foreign troops in the service of a nation at war; (rarely in sing. ), a member of the allied or subsidiary force.
3. (Gram.) A verb which helps to form the voices, modes, and tenses of other verbs; — called, also an auxiliary verb; as have, be, may, can, do, must, shall, and will, in English; être and avoir, in French; avere and essere, in Italian; estar and haber, in Spanish.
4. (Math.) A quantity introduced for the purpose of simplifying or facilitating some operation, as in equations or trigonometrical formulae. Math. Dict.

Auxiliatory
Aux•il´ia•to•ry, a. Auxiliary; helping. [Obs.]

Auxometer
Aux•om´e•ter, n. [Gr. to increase + -meter.] (Optics) An instrument for measuring the magnifying power of a lens or system of lenses.