Eu*chro"ic (?), a. [Gr. &?; well- colored; &?; well + &?; color.] (Chem.) Having a fine color.
Euchroic acid (Chem.), an organic, imide acid, obtained as a colorless crystalline substance, C12H4N2O8 by heating an ammonium salt of mellitic acid. By reduction it is changed to a dark blue substance (euchrone), -- hence its name.
Eu"chro*ite (?), n. [See Euchroic.] (Min.) A mineral occurring in transparent emerald green crystals. It is hydrous arseniate of copper.
Eu"chrone (?) n. (Chem.) A substance obtained from euchroic acid. See Eychroic.
Eu"chy*my (?), n. [Gr. &?; well + &?; juice liquid. See Chyme.] (Med.) A good state of the blood and other fluids of the body.
Eu"clase (?) n. [Gr. &?; well, easily + &?; to break. Cf. F. euclase, G. euklas. See named from its brittleness.] (Min.) A brittle gem occurring in light green, transparent crystals, affording a brilliant clinodiagonal cleavage. It is a silicate of alumina and glucina.
Eu"clid (?), n. A Greek geometer of the 3d century b. c.; also, his treatise on geometry, and hence, the principles of geometry, in general.
Eu*clid"i*an (?), n. Related to Euclid, or to the geometry of Euclid.
Euclidian space (Geom.), the kind of space to which the axioms and definitions of Euclid, relative to straight lines and parallel lines, apply; -- called also flat space, and homaloidal space.
||Eu`co*pep"o*da (?), n. pl. [NL. See Eu- and Copepoda.] (Zoöl.) A group which includes the typical copepods and the lerneans.
Eu"cra*sy (?). [Gr. &?;; &?;, well-tempered; e'y^ well + &?; to mix, temper: cf. F. eucrasie.] (Med.) Such a due mixture of qualities in bodies as constitutes health or soundness. Quincy.
Euc"tic*al (?) [Gr. &?;, fr. &?; to pray, wish.] Expecting a wish; supplicatory. [R.]
Sacrifices . . . distinguished into expiatory, euctical, and eucharistical.
Bp. Law.
{ Eu*de"mon, Eu*dæ"mon (?) }, n. [Gr. e'y^ well, good + &?; one's demon.] A good angel. Southey.
{ Eu`de*mon"ics, Eu`dæ*mon"ics (?) }, n. [Gr. &?; conducive to happiness. See Eudemonism.] That part of moral philosophy which treats of happiness; the science of happiness; -- contrasted with aretaics. J. Grote.
{ Eu*de"mon*ism, Eu*dæ"mon*ism (?) }, n. [Gr. &?; a thinking happy, fr, &?; blessed with a good genius, happy; e'y^ well, good + &?; one's demon of genius. See Demon.] That system of ethics which defines and enforces moral obligation by its relation to happiness or personal well-being.
{ Eu*de"mon*ist, Eu*dæ"mon*ist }, n. One who believes in eudemonism.
I am too much of a eudæmonist; I hanker too much after a state of happiness both for myself and others.
De Quincey.
{ Eu*de`mon*is"tic , Eu*dæ`mon*is"tic (?) }, a. Of or pertaining to eudemonism.
{ 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.
Eulerian integrals, certain definite integrals whose properties were first investigated by Euler.
{ Eu*log"ic (?), Eu*log"ic*al (?), } a. [See Eulogy.] Bestowing praise of eulogy; commendatory; eulogistic. [R.] -- Eu*log"ic*al*ly, adv. [R.]
Eu"lo*gist (?) n. One who eulogizes or praises; panegyrist; encomiast. Buckle.
{ Eu`lo*gis"tic (?), Eu`lo*gis"tic*al (?), } a. Of or pertaining to eulogy; characterized by eulogy; bestowing praise; panegyrical; commendatory; laudatory; as, eulogistic speech or discourse. -- Eu"lo*gis"tic*al*ly, adv.
Eu*lo"gi*um (?) n.; pl. Eulogiums (#). [LL., fr. Gr. &?; eulogy.] A formal eulogy. Smollett.
Eu"lo*gize (?) v. t. [imp. & p. p. Eulogized. (&?;); p. pr. & vb. n. Eulogizing (?).] To speak or write in commendation of (another); to extol in speech or writing; to praise.
Eu"lo*gy (?), n.; pl. Eulogies (#). [Gr. &?;, from &?; well speaking; e'y^ well + &?; to speak. Cf. Eulogium, and see Legend.] A speech or writing in commendation of the character or services of a person; as, a fitting eulogy to worth.
Eulogies turn into elegies.
Spenser.
Syn. -- Encomium; praise; panegyric; applause. -- Eulogy, Eulogium, Encomium, Panegyric. The idea of praise is common to all these words. The word encomium is used of both persons and things which are the result of human action, and denotes warm praise. Eulogium and eulogy apply only to persons and are more studied and of greater length. A panegyric was originally a set speech in a full assembly of the people, and hence denotes a more formal eulogy, couched in terms of warm and continuous praise, especially as to personal character. We may bestow encomiums on any work of art, on production of genius, without reference to the performer; we bestow eulogies, or pronounce a eulogium, upon some individual distinguished for his merit public services; we pronounce a panegyric before an assembly gathered for the occasion.
Eu"ly*tite (?), n. [Gr. e'y^ well + &?; to dissolve.] (Min.) A mineral, consisting chiefly of the silicate of bismuth, found at Freiberg; -- called also culytine.
||Eu*men"i*des (?), n. pl. [L., from Gr. &?; lit., gracious goddesses.] (Class. Myth.) A euphemistic name for the Furies of Erinyes.
||Eu*mol"pus (?), n. [NL., fr. Gr. &?; sweetly singing.] (Zoöl.) A genus of small beetles, one species of which (E. viti) is very injurious to the vines in the wine countries of Europe.
Eu*no"mi*an (?), n. (Eccl. Hist.) A follower of Eunomius, bishop of Cyzicus (4th century A. D.), who held that Christ was not God but a created being, having a nature different from that of the Father. -- a. Of or pertaining to Eunomius or his doctrine.
Eu"no*my (?), n. [Gr. &?;; e'y^ well + &?; law.] Equal law, or a well-adjusted constitution of government. [R.] Mitford.
Eu"nuch (?), n. [L. eunuchus, Gr. &?;, prop., keeping or guarding the couch; &?; couch, bed, + &?; to have, hold, keep.] A male of the human species castrated; commonly, one of a class of such persons, in Oriental countries, having charge of the women's apartments. Some of them, in former times, gained high official rank.
{ Eu"nuch (?), Eu"nuch*ate, } v. t. [L. eunuchare.] To make a eunuch of; to castrate. as a man. Creech. Sir. T. Browne.
Eu"nuch*ism (?), n. [L. eunuchismus an unmanning, Gr. &?;: cf. F. eunuchisme eunuchism.] The state of being eunuch. Bp. Hall.
Eu*on"y*min (?), n. (Med.) A principle or mixture of principles derived from Euonymus atropurpureus, or spindle tree.
||Eu*on"y*mus (?), n. [NL. (cf. L. euonymos). fr. Gr. &?;, lit., of good name.] (Bot.) A genus of small European and American trees; the spindle tree. The bark is used as a cathartic.
||Eu`or*ni"thes (?), n. pl. [NL., fr., Gr. e'y^ well + &?;, &?; a bird.] (Zoöl.) The division of Aves which includes all the typical birds, or all living birds except the penguins and birds of ostrichlike form.
Eu*os"mitte (?), n. [Gr. e'y^ well + &?; a smell.] (Min.) A fossil resin, so called from its strong, peculiar, pleasant odor.
Eu"pa*thy (?), n. [Gr. &?; comfort, happy condition of the soul. See Eu-, and Pathetic.] Right feeling. [R.] Harris.
{ Eu*pat"o*rin Eu*pat"o*rine } (?), n. (Med.) A principle or mixture of principles extracted from various species of Eupatorium.
Eu`pa*to"ri*um (?), n. [NL., fr. Eupator, king of Pontus, said to have used it as a medicine.] (Bot.) A genus of perennial, composite herbs including hemp agrimony, boneset, throughwort, etc.
Eu"pa*trid (?), n. [Gr. e'y^ well + &?; father.] One well born, or of noble birth.
{ ||Eu*pep"si*a (?), Eu*pep"sy (?), } n. [NL. eupepsia, Fr. Gr. &?;, fr. &?; easy of digestion; e'y^ well + &?; to cook, digest.] (Med.) Soundness of the nutritive or digestive organs; good concoction or digestion; -- opposed to dyspepsia.
Eu*pep"tic (?), a. [Gr. &?;.] Of or pertaining to good digestion; easy of digestion; having a good digestion; as, eupeptic food; an eupeptic man.
Wrapt in lazy eupeptic fat.
Carlyle.
Eu"phe*mism ("f*mz'm), n. [Gr. &?; fr. &?; to use word of a good omen; e'y^ well + &?; to speak: cf. F. euphémisme. See Fame.] (Rhet.) A figure in which a harsh or indelicate word or expression is softened; a way of describing an offensive thing by an inoffensive expression; a mild name for something disagreeable.
{ Eu`phe*mis"tic (?), Eu`phe*mis"tic*al (?), } a. Pertaining to euphemism; containing a euphemism; softened in expression. -- Eu`phe*mis"tic*al*ly, adv.
Eu"phe*mize (?), v. t. & i. [imp. & p. p. Euphemized (?); p. pr. & vb. n. Euphemizing.] [Gr. &?; .] To express by a euphemism, or in delicate language; to make use of euphemistic expressions.
Eu*pho"ni*ad (?), n. [See Euphony.] (Mus.) An instrument in which are combined the characteristic tones of the organ and various other instruments. [R.]
{ Eu*phon"ic (?), Eu*phon"ic*al (?), } a. Pertaining to, or exhibiting, euphony; agreeable in sound; pleasing to the ear; euphonious; as, a euphonic expression; euphonical orthography.
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Eu*phon"i*con (*fn"*kn), n. [See Euphony.] (Mus.) A kind of upright piano.
Eu*pho"ni*ous (?), a. Pleasing or sweet in sound; euphonic; smooth-sounding. Hallam. -- Eu*pho"ni*ous*ly, adv.
Eu"pho*nism (?), n. An agreeable combination of sounds; euphony.
Eu*pho"ni*um (?), n. [NL. See Euphony.] (Mus.) A bass instrument of the saxhorn family.