Aqua
A´qua, n. [L. See Ewer.] Water; — a word much used in pharmacy and the old chemistry, in various signification, determined by the word or words annexed. Aqua ammoniae, the aqueous solution of ammonia; liquid ammonia; often called aqua ammonia. — Aqua marine, or Aqua marina . Same as Aquamarine. — Aqua regia . [L., royal water] (Chem.), a very corrosive fuming yellow liquid consisting of nitric and hydrochloric acids. It has the power of dissolving gold, the "royal" metal. — Aqua Tofana, a fluid containing arsenic, and used for secret poisoning, made by an Italian woman named Tofana, in the middle of the 17th century, who is said to have poisoned more than 600 persons. Francis. — Aqua vitae [L., water of life. Cf. Eau de vie, Usquebaugh], a name given to brandy and some other ardent spirits. Shak.
Aqua fortis
A•qua for"tis . [L., strong water.] (Chem.) Nitric acid. [Archaic]
Aquamarine
A•qua•ma•rine´, n. (Min.) A transparent, pale green variety of beryl, used as a gem. See Beryl.
Aquarian
A•qua´ri•an, n. [L. (assumed) Aquarianus, fr. aqua: cf. F. Aquarien. See Aqua.] (Eccl. Hist.) One of a sect of Christian in the primitive church who used water instead of wine in the Lord’s Supper.
Aquarium
A•qua´ri•um, n. ; pl. E. Aquariums, L. Aquaria . [L. See Aquarius, Ewer.] An artificial pond, or a globe or tank (usually with glass sides), in which living specimens of aquatic animals or plants are kept.
Aquarius
A•qua´ri•us, n. [L. aquarius, adj., relating to water, and n., a water-carrier, fr. aqua. See Aqua.] (Astron.) (a) The Water-bearer; the eleventh sign in the zodiac, which the sun enters about the 20th of January; — so called from the rains which prevail at that season in Italy and the East. (b) A constellation south of Pegasus.
Aquatic
A•quat´ic, a. [L. aquaticus: cf. F. aquatique. See Aqua.] Pertaining to water; growing in water; living in, swimming in, or frequenting the margins of waters; as aquatic plants and fowls.
Aquatile
Aq´ua•tile, a. [L. aquatilis: cf. F. aquatile.] Inhabiting the water. [R.] Sir T. Browne. { A´qua•tint, A•qua•tin´ta } n. [It. acquatinta dyed water; acqua (L. aqua) water + tinto, fem. tinta, dyed. See Tint.] A kind of etching in which spaces are bitten by the use of aqua fortis, by which an effect is produced resembling a drawing in water colors or India ink; also the engraving produced by this method.
Aqueduct
Aq´ue•duct, n. [F. aqueduc, OF. aqueduct (Cotgr.), fr. L. aquaeductus; aquae, gen. of aqua water + ductus a leading, ducere to lead. See Aqua, Duke.]
1. A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water. The term is also applied to a structure (similar to the ancient aqueducts), for conveying a canal over a river or hollow; more properly called an aqueduct bridge.
2. (Anat.) A canal or passage; as the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.
Aqueous
A´que•ous, a. [Cf. F. aqueux, L. aquosus, fr. aqua. See Aqua, Aquose.]
1. Partaking of the nature of water, or abounding with it; watery.
"The aqueous vapor of the air." - Tyndall.
2. Made from, or by means of, water.
"An aqueous deposit." - Dana.
Aqueous extract, an extract obtained from a vegetable substance by steeping it in water. — Aqueous humor (Anat.), one the humors of the eye; a limpid fluid, occupying the space between the crystalline lens and the cornea. (See Eye.) — Aqueous rocks (Geol.), those which are deposited from water and lie in strata, as opposed to volcanic rocks, which are of igneous origin; — called also sedimentary rocks.
Aquiform
A´qui•form, a. [L. aqua water + -form.] Having the form of water.
Aquilated
Aq´ui•la•ted, a. (Her.) Adorned with eagles’ heads.
Aquiline
Aq´ui•line ( 277), a. [L. aquilinus, fr. aquila eagle: cf. F. aquilin. See Eagle. ]
1. Belonging to or like an eagle.
2. Curving; hooked; prominent, like the beak of an eagle; — applied particularly to the nose
"Terribly arched and aquiline his nose." - Cowper.
Aquilon
Aq´ui•lon, n. [L. aquilo, - lonis: cf. F. aquilon.] The north wind. [Obs.] Shak.
Aquitanian
Aq•ui•ta´ni•an, a. Of or pertaining to Aquitania, now called Gascony.
Aquose
A•quose´, a. [L. aquosus watery, fr. aqua. See Aqua, Aqueous.] Watery; aqueous. [R.] Bailey.