Defn: A mineral of a brownish red color and vitreous luster, consisting chiefly of the silicates of iron, zirconia, and lime.
EUDIOMETER
Eu`di*om"e*ter, n. Etym: [Gr. -meter: cf. F. ediomètre.] (Chem.)
Defn: An instrument for the volumetric measurement of gases; — so named because frequently used to determine the purity of the air.
Note: 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 through of mercury, or sometimes over water. Cf. Burette. Use's ediometer has the tube bent in the form of the letter. U.
EUDIOMETRIC; EUDIOMETRICAL
Eu`di*o*met"ric, Eu`di*o*met"ric*al, a.
Defn: Of or pertaining to a eudiometer; as, eudiometrical experiments or results.
EUDIOMETRY
Eu`di*om"e*try, n. Etym: [Cf. F. eudiométrie.] (Chem.)
Defn: The art or process of determining he 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.
EUDIPLEURA
Eu`di*pleu"ra, n. pl. Etym: [NL., fr. Gr. (Biol.)
Defn: The fundamental forms of organic life, that are composed of two equal and symmetrical halves. Syd. Soc. Lex.