Part 851

{ Eu*de`mon*is"tic*al, Eu*dæ`mon*is"tic*al (?) }, a. Eudemonistic.

Eu*di"a*lyte (?), n. [Gr. e'y^ well, easily + &?; to dissolve. So called because easily dissolvable in acids.] (Min.) A mineral of a brownish red color and vitreous luster, consisting chiefly of the silicates of iron, zirconia, and lime.

Eu`di*om"e*ter (?), n. [Gr. &?; fair, clear weather, fr. &?; fine, clear ( said of the air or weather) + -meter: cf. F. ediomètre.] (Chem.) An instrument for the volumetric measurement of gases; -- so named because frequently used to determine the purity of the air.

It usually consists of a finely graduated and calibrated glass tube, open at one end, the bottom; and having near the top a pair of platinum wires fused in, to allow the passage of an electric spark, as the process involves the explosion and combustion of one of the ingredients to be determined. The operation is conducted in a trough of mercury, or sometimes over water. Cf. Burette. Ure's eudiometer has the tube bent in the form of the letter. U.

{ Eu`di*o*met"ric (?), Eu`di*o*met"ric*al (?), } a. Of or pertaining to a eudiometer; as, eudiometrical experiments or results.

Eu`di*om"e*try (?), n. [Cf. F. eudiométrie.] (Chem.) The art or process of determining the constituents of a gaseous mixture by means of the eudiometer, or for ascertaining the purity of the air or the amount of oxygen in it.

||Eu`di*pleu"ra (?), n. pl. [NL., fr. Gr. e'y^ well + &?; double + &?; rib,&?;, pl.,side.] (Biol.) The fundamental forms of organic life, that are composed of two equal and symmetrical halves. Syd. Soc. Lex.

Eu*dox"i*an (?), n. (Eccl. Hist.) A follower of Eudoxius, patriarch of Antioch and Constantinople in the 4th century, and a celebrated defender of the doctrines of Arius.

||Eu`ga*noi"de*i (?), n. pl. [NL., fr. Gr. e'y^ well + NL. ganoidei. See Ganoid.] (Zoöl) A group which includes the bony ganoids, as the gar pikes.

||Eu"ge (?), n. [L., well done! bravo! Gr. &?;.] Applause. [Obs.] Hammond.

||Eu*ge"ni*a (*j"n*), n. [NL. Named in honor of Prince Eugene of Savoy.] (Bot.) A genus of myrtaceous plants, mostly of tropical countries, and including several aromatic trees and shrubs, among which are the trees which produce allspice and cloves of commerce.

Eu*gen"ic (*jn"k), a. [See Eugenia.] (Chem.) Pertaining to, or derived from, cloves; as, eugenic acid.

Eu*gen"ic (*jn"k), a. [Gr. e'ygenh`s.] Well-born; of high birth. Atlantic Monthly.

Eu*gen"ics (?), n. The science of improving stock, whether human or animal. F. Galton.

Eu"ge*nin (?), n. (Chem.) A colorless, crystalline substance extracted from oil of cloves; -- called also clove camphor.

Eu"ge*nol (?), n. [Eugenia + -ol.] (Chem.) A colorless, aromatic, liquid hydrocarbon, C10H12O2 resembling the phenols, and hence also called eugenic acid. It is found in the oils of pimento and cloves.

Eu"ge*ny (?). [Gr. &?;, fr. e'ygenh`s well born; e'y^ well + &?; race.] Nobleness of birth. [Obs.]

{ Eu*get"ic (?), Eu`ge*tin"ic (?), } a. (Chem) Pertaining to, or derived from, eugenol; as, eugetic acid.

Eugh (?), n. [See Yew.] The yew. [Obs.] Dryden.

{ Eu*gu"bi*an (?), Eu"gu*bine (?), } a. Of or pertaining to the ancient town of Eugubium (now Gubbio); as, the Eugubine tablets, or tables, or inscriptions.

Eu`har*mon"ic (?), a. [Pref. -eu + harmonic.] (Mus.) Producing mathematically perfect harmony or concord; sweetly or perfectly harmonious.

Eu*hem"er*ism (?) n. [L. Euhemerus, Gr. &?; a philosopher, about 300 &?;.] The theory, held by Euhemerus, that the gods of mythology were but deified mortals, and their deeds only the amplification in imagination of human acts.

Eu*hem"er*ist, n. One who advocates euhemerism.

Eu*hem`er*is"tic (?), a. Of or pertaining to euhemerism.

Eu*hem"er*ize (?) v. t. To interpret (mythology) on the theory of euhemerism.

||Eu`i*sop"o*da (?). pl. [NL. See Eu- and Isopoda.] (Zoöl.) A group which includes the typical Isopoda.

||Eu"la*chon (?), n. [Native Indian name.] (Zoöl.) The candlefish. [Written also oulachan, oolacan, and ulikon.] See Candlefish.

Eu*le"ri*an (?) a. Pertaining to Euler, a German mathematician of the 18th century.