Psalmist
Psalm´ist, n. [L. psalmista, Gr. : cf. F. psalmiste. See Psalm.]
1. A writer or composer of sacred songs; — a title particularly applied to David and the other authors of the Scriptural psalms.
2. (R. C. Ch.) A clerk, precentor, singer, or leader of music, in the church.

Psalmodist
Psal´mo•dist, n. One who sings sacred songs; a psalmist.

Psalmodize
Psal´mo•dize, v. i. To practice psalmody. " The psalmodizing art." J. G. Cooper.

Psalmody
Psal´mo•dy, n. [Gr. ; psalm + a song, an ode: cf. F. psalmodie, LL. psalmodia. See Psalm, and Ode.] The act, practice, or art of singing psalms or sacred songs; also psalms collectively, or a collection of psalms.

Psalter
Psal´ter, n. [OE. psauter, sauter, OF. sautier, psaltier, F. psautier, from L. psalterium. See Psaltery.]
1. The Book of Psalms; — often applied to a book containing the Psalms separately printed.
2. Specifically, the Book of Psalms as printed in the Book of Common Prayer; among the Roman Catholics, the part of the Breviary which contains the Psalms arranged for each day of the week.
3. (R. C. Ch.) A rosary, consisting of a hundred and fifty beads, corresponding to the number of the psalms.

Psalterium
Psal•te´ri•um, n. ; pl. Psalteria (#). [L., a psaltery.] (Anat.) (a) The third stomach of ruminants. See Manyplies. (b) The lyra of the brain.

Psarolite
Psar´o•lite, n. [Gr. speckled + -lite.] (Paleon.) A silicified stem of tree fern, found in abundance in the Triassic sandstone.

Psellism
Psel´lism, n. [Gr., fr. to stammer.] Indistinct pronunciation; stammering.

Psephism
Pse´phism, n. [Gr. a decree, fr. to vote with a pebble, fr. pebble.] (Gr. Antiq.) A proposition adopted by a majority of votes; especially, one adopted by vote of the Athenian people; a statute. J. P. Mahaffy.

Pseudaesthesia
Pseu•daes•the´si•a, n. [NL. See Pseudo-, and AEsthesia.] (Physiol.) False or imaginary feeling or sense perception such as occurs in hypochondriasis, or such as is referred to an organ that has been removed, as an amputated foot.

Pseudepigraphous
Pseu•de•pig´ra•phous, a. [Gr. falsely inscribed. See Pseudo-, and Epigraphy.] Inscribed with a false name. Cudworth.

Pseudhaemal
Pseud•hae´mal, a. [ Pseudo- + haemal.] (Zoöl.) Pertaining to the vascular system of annelids. Pseudhaemal fluid, the circulatory fluid, or blood, of annelids, analogous to the blood of vertebrates. It is often red, but is sometimes green or colorless. — Pseudhaemal vessels, the blood vessels of annelids.

Pseudo-
Pseu´do- [Gr. pseydh•s lying, false, akin to psey•dein to belie; cf. psydro•s lying, psy•qos a lie.] A combining form or prefix signifying false, counterfeit, pretended, spurious; as pseudo-apostle, a false apostle; pseudo-clergy, false or spurious clergy; pseudo-episcopacy, pseudo- form, pseudo-martyr, pseudo-philosopher. Also used adjectively.

Pseudobacteria
Pseu•do•bac•te´ri•a, n. pl. [ Pseudo- + bacteria.] (Biol.) Microscopic organic particles, molecular granules, powdered inorganic substances, etc., which in form, size, and grouping resemble bacteria. The globules which divide and develop in form of chains are organized beings; when this does not occur, we are dealing with pseudobacteria. Sternberg.

Pseudoblepsis
Pseu•do•blep´sis, n. [NL., fr. Gr. pseydh•s false + ble•psis sight.] (Med.) False or depraved sight; imaginary vision of objects. Forsyth.

Pseudobranch
Pseu´do•branch, n. (Anat.) Same as Pseudobranchia.

Pseudocarp
Pseu´do•carp, n. [ Pseudo- + Gr. fruit.] (Bot.) That portion of an anthocarpous fruit which is not derived from the ovary, as the soft part of a strawberry or of a fig.

Pseudo-china
Pseu•do-chi´na, n. [ Pseudo- + china.] (Bot.) The false china root, a plant of the genus Smilax ( S. Pseudo-china), found in America.

Pseudocœle
Pseu"do•cœle, n. Same as Pseudocœlia.

Pseudo-cumene
Pseu•do-cu´mene, n. [ Pseudo- + cumene.] (Chem.) A hydrocarbon of the aromatic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid.

Pseudo-dipteral
Pseu•do-dip´ter•al, a. [ Pseudo- + dipteral: cf. F. pseudodiptère.] (Arch.) Falsely or imperfectly dipteral, as a temple with the inner range of columns surrounding the cella omitted, so that the space between the cella wall and the columns is very great, being equal to two intercolumns and one column. — n. A pseudo-dipteral temple.

Pseudodox
Pseu´do•dox, a. [Gr. pseydo•doxos; pseydh•s false + do•xa an opinion.] Not true in opinion or doctrine; false. — n. A false opinion or doctrine. "To maintain the atheistical pseudodox which judgeth evil good, and darkness light." T. Adams.

Pseudofilaria
Pseu•do•fi•la´ri•a, n. ; pl. Pseudofilari (#). [NL. See Pseudo-, and Filaria.] (Zoöl.) One of the two elongated vibratile young formed by fission of the embryo during the development of certain Gregarinae.

Pseudohalter
Pseu•do•hal´ter, n. ; pl. Pseudohalteres (#). [NL. See Pseudo-, and Halteres.] (Zoöl.) One of the rudimentary front wings of certain insects ( Stylops). They resemble the halteres, or rudimentary hind wings, of Diptera.

Pseudo-hyperthophic
Pseu•do-hy•per•thoph´ic, a. [ Pseudo- + hypertrophic.] (Med.) Falsely hypertrophic; as pseudo-hypertrophic paralysis, a variety of paralysis in which the muscles are apparently enlarged, but are really degenerated and replaced by fat.

Pseudologist
Pseu•dol´o•gist, n. [Gr. .] One who utters falsehoods; a liar.

Pseudology
Pseu•dol´o•gy, n. [Gr. ; pseydh•s false + speech: cf. F. pseudologie.] Falsehood of speech. Arbuthnot.

Pseudo-metallic
Pseu•do-me•tal´lic, a. [ Pseudo- + metallic.] Falsely or imperfectly metallic; — said of a kind of luster, as in minerals.

Pseudo-monocotyledonous
Pseu•do-mon•o•cot•y•led´on•ous, a. [ Pseudo- + monocotyledonous.] (Bot.) Having two coalescent cotyledons, as the live oak and the horse- chestnut.

Pseudomorph
Pseu´do•morph, n. [See Pseudomorphous.]
1. An irregular or deceptive form.
2. (Crystallog.) A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution.

Pseudomorphous
Pseu•do•mor´phous, a. [Gr. ; pseydh•s false + form: cf. F. pseudomorphe.] Not having the true form. Pseudomorphous crystal, one which has a form that does not result from its own powers of crystallization.

Pseudonavicella
Pseu•do•nav•i•cel´la, n. ; pl. Pseudonavicullae (#). [NL.] (Zoöl.) Same as Pseudonavicula.

Pseudonym
Pseu´do•nym, n. [Cf. F. pseudonyme. See Pseudonymous.] A fictitious name assumed for the time, as by an author; a pen name. [Written also pseudonyme.]

Pseudonymous
Pseu•don´y•mous, a. [Gr. ; pseydh•s false +,, a name: cf. F. pseudonyme. See Pseudo-, and Name.] Bearing a false or fictitious name; as a pseudonymous work. — Pseu•don´y•mous•ly, adv. — Pseu•don´y•mous•ness, n.

Pseudopod
Pseu´do•pod, n. [ Pseudo- + -pod.]
1. (Biol.) Any protoplasmic filament or irregular process projecting from any unicellular organism, or from any animal or plant call.
2. (Zoöl.) A rhizopod.

Pseudopodial
Pseu•do•po´di•al, a. Of or pertaining to a pseudopod, or to pseudopodia. See Illust. of Heliozoa.

Pseudo-romantic
Pseu•do-ro•man´tic, a. Pseudo- + romantic.] Falsely romantic.
"The false taste, the pseudo-romantic rage." De Quincey.

Pseudoscope
Pseu´do•scope, n. [ Pseudo- + -scope.] (Opt.) An instrument which exhibits objects with their proper relief reversed; — an effect opposite to that produced by the stereoscope. Wheatstone.

Pseudoscopic
Pseu•do•scop´ic, a. (Opt.) Of, pertaining to, or formed by, a pseudoscope; having its parts appearing with the relief reversed; as a pseudoscopic image.

Pseudoscorpiones
Pseu•do•scor•pi•o´nes, n. pl. [NL. See Pseudo-, and Scorpion.] (Zoöl.) An order of Arachnoidea having the palpi terminated by large claws, as in the scorpions, but destitute of a caudal sting; the false scorpions. Called also Pseudoscorpii, and Pseudoscorpionina. See Illust. of Book scorpion, under Book.

Pseudospore
Pseu´do•spore, n. [ Pseudo- + spore.] (Bot.)A peculiar reproductive cell found in some fungi.

Pseudostella
Pseu•do•stel´la, n. ; pl. -lae. [NL., fr. Gr. pseydh•s false + L. stella star.] (Astron.) Any starlike meteor or phenomenon. [R.]

Pseudostoma
Pseu•dos´to•ma, n. ; pl. Pseudostomata (#). [NL. See Pseudo-, and Stoma.] (Anat.) A group of cells resembling a stoma, but without any true aperture among them.

Pseudo-symmetry
Pseu•do-sym´me•try, n. [ Pseudo- + symmetry.] (Crystallog.) A kind of symmetry characteristic of certain crystals which from twinning, or other causes, come to resemble forms of a system other than that to which they belong, as the apparently hexagonal prisms of aragonite.

Pseudotetramera
Pseu•do•te•tram´e•ra, n. pl. [NL. See Pseudo-, and Tetramerous.] (Zoöl.) A division of beetles having the fifth tarsal joint minute and obscure, so that there appear to be but four joints. — Pseu•do•te•tram´er•al (#), a.

Pseudovum
Pseu•do´vum, n. ; pl. Pseudova (#). [NL. See Pseudo-, and Ovum.] (Zoöl.) An egglike germ produced by the agamic females of some insects and other animals, and by the larvae of certain insects. It is capable of development without fertilization. See Illust. of Paedogenesis.

Psilanthropic
Psi•lan•throp´ic, a. [see Psilanthropist.] Pertaining to, or embodying, psilanthropy. "A psilanthropic explanation." Coleridge.

Psilanthropist
Psi•lan´thro•pist, n. [Gr. bare, mere + a man.] One who believes that Christ was a mere man. Smart.

Psilanthropy
Psi•lan´thro•py, n. The doctrine of the merely human existence of Christ.

Psilology
Psi•lol´o•gy, n. [Gr mere + - logy.] Love of empty of empty talk or noise. Coleridge.

Psilomelane
Psi•lom´e•lane, n. [Gr. bare +,, black.] (Min.) A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.

Psilopaedes
Psi•lo•pae´des, n. pl. [NL., from Gr. bare +,, offspring.] (Zoöl.) birds whose young at first have down on the pterylae only; - - called also Gymnopaedes.

Psilopaedic
Psi•lo•paed´ic, a. (Zoöl.) Having down upon the pterylae only; — said of the young of certain birds.

Psilosopher
Psi•los´o•pher, n. [Gr. bare, mere + wise.] A superficial or narrow pretender to philosophy; a sham philosopher. { Psit•ta´ceous, Psit´ta•cid } a. [L. psittacus a parrot, Gr. : cf. F. psittacide.] (Zoöl.) Of or pertaining to the parrots, or the Psittaci. — n. One of the Psittaci.

Psittaci
Psit´ta•ci, n. pl. [NL.] (Zoöl.) The order of birds which comprises the parrots.

Psitta-co-fulvine
Psit•ta-co-ful´•vine, n. [Gr. a parrot + L. fulvus yellow.] A yellow pigment found in the feathers of certain parrots.

Psoas
Pso´as, n. [Gr. a muscle of the loin: cf. f. psoas.] (Anat.) An internal muscle arising from the lumbar vertebrae and inserted into the femur. In man there are usually two on each side, and the larger one, or great psoas forms a part of the iliopsoas.

Psora
Pso´ra, n. [L., fr. Gr. .] (Med.) A cutaneous disease; especially, the itch.

Psoriasis
Pso•ri´a•sis, n. [NL., fr. Gr., fr. psora.] (Med.) (a) The state of being affected with psora. [Obs.] (b) A cutaneous disease, characterized by imbricated silvery scales, affecting only the superficial layers of the skin.

Psoric
Pso´ric, a. [L. psoricus, Gr. : cf. F. psorique.] (Med.) Of or pertaining to psora.

Psorosperm
Pso´ro•sperm, n. [Gr. itching + seed.] (Zoöl.) A minute parasite, usually the young of Gregarinae, in the pseudonavicula stage.

Psychagogic
Psy•cha•gog´ic, a. [Gr. . See Psychagogue.] Attractive; persuasive. J. Morley.

Psychal
Psy´chal, a. [See Psychical.] Of or pertaining to the soul; psychical. Bayne.

Psyche
Psy´che, n. [L., fr. Gr. PSychh• Psyche, fr. psychh• the soul.]
1. (Class Myth.) A lovely maiden, daughter of a king and mistress of Eros, or Cupid. She is regarded as the personification of the soul.
2. The soul; the vital principle; the mind.
3. [F. psyche.] A cheval glass.

Psychian
Psy´chi•an, n. (Zoöl.) Any small moth of the genus Psyche and allied genera (family Psychidae). The larvae are called basket worms. See Basket worm, under Basket. { Psy•chi•a•tri´a, Psy•chi´a•try } n. [NL. psychiatria, fr. Gr. the mind + healing.] (Med.) The application of the healing art to mental diseases. Dunglison.

Psychics
Psy´chics, n. Psychology.

Psychism
Psy´chism, n. [Cf. F. psychisme.] (Philos.) The doctrine of Quesne, that there is a fluid universally diffused, end equally animating all living beings, the difference in their actions being due to the difference of the individual organizations. Fleming.

Psycho-
Psy´cho- A combining form from Gr. psychh• the soul, the mind, the understanding; as psychology.

Psychoanalysis
Psy•cho•a•nal´y•sis, n. — Psy•cho•an•a•lyt´ic a. etc. = Psychanalysis Psychanalytic.

Psychography
Psy•chog´ra•phy, n. [ Psycho- + -graphy.]
1. A description of the phenomena of mind.
2. (Spiritualism) Spirit writing. { Psy•cho•log´ic, Psy•cho•log´ic•al } a. [Cf. F. psychologique.] Of or pertaining to psychology. See Note under Psychic. — Psy•cho•log´ic•al•ly, adv.

Psychologue
Psy´cho•logue, n. A psychologist.

Psychology
Psy•chol´o•gy, n. pl. Psychologies . [ Psycho- + -logy: cf. F. psychologie. See Psychical.] The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness; a treatise on the human soul.
"Psychology, the science conversant about the phenomena of the mind, or conscious subject, or self." Sir W. Hamilton.

Psychomancy
Psy´cho•man•cy, n. [ Psycho- + -mancy: cf. F. psychomancie.] Necromancy.

Psychometry
Psy•chom´e•try, n. [ Psycho- + -metry.] (Physiol.) The art of measuring the duration of mental processes, or of determining the time relations of mental phenomena. — Psy•cho•met´ric (#), a.

Psycho-motor
Psy•cho-mo´tor, a. [ Psycho- + motor.] Of or pertaining to movement produced by action of the mind or will.

Psychopannychism
Psy´cho•pan´ny•chism, n. [ Psycho- + Gr. to spend all night long;,, all + night.] (Theol.) The doctrine that the soul falls asleep at death, and does not wake until the resurrection of the body. — Psy•cho•pan´ny•chism (#), n.

Psychopathy
Psy•chop´a•thy, n. [ Psycho- + Gr., .] (Med.) Mental disease. See Psychosis, 2. — Psy•cho•path´ic, a. — Psy•chop´a•thist, n.

Psychopomp
Psy´cho•pomp, n. [Gr. ; psychh• the soul + to send: cf. F. psychopompe.] (Myth.) A leader or guide of souls . J. Fiske.

Psychosis
Psy•cho´sis, n. [NL. See Psycho- .]
1. Any vital action or activity. Mivart.
2. (Med.) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.

Psychotherapy
Psy•cho•ther´a•py, n. [ Psycho- + therapy.] (Med.) Psychotherapeutics.

Psychozoic
Psy•cho•zo´ic, a. [ Psycho- + Gr. life.] (Geol.)Designating, or applied to the Era of man; as the psychozoic era.

Psychrometer
Psy•chrom´e•ter, n. [Gr. psychro•s cold + -meter: cf. F. psychromètre.] An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.

Psychrometrical
Psy•chro•met´ric•al, a. Of or pertaining to the psychrometer or psychrometry.

Psychrometry
Psy•chrom´e•try, n. Hygrometry.

Psylla
Psyl´la, n. ; pl. Psyllae (#). [NL., from Gr. a flea.] (Zoöl.) Any leaping plant louse of the genus Psylla, or family Psyllidae.