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The Gutenberg Webster's Unabridged Dictionary: Section X, Y, and Z

by Project Gutenberg

Pages
about 717
Category
Literature & Fiction
Language
English
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X (ks). X, the twenty-fourth letter of the English alphabet, has three sounds; a compound nonvocal sound (that of ks), as in wax; a compound vocal sound (that of gz), as in example; and, at the beginning of a word, a simple vocal sound (that of z), as in xanthic. See Guide to Pronunciation, §§ 217, 270, 271.

The form and value of X are from the Latin X, which is from the Greek , which in some Greek alphabets had the value of ks, though in the one now in common use it represents an aspirated sound of k.

Xanth*am"ide (?), n. [Xanthic + amide.] (Chem.) An amido derivative of xanthic acid obtained as a white crystalline substance, C2H5O.CS.NH2; -- called also xanthogen amide.

Xan"thate (?), n. [See Xanthic.] (Chem.) A salt of xanthic; a xanthogenate.

||Xan`the*las"ma (?), n. [NL.; Gr. xanqo`s yellow + 'e`lasma a metal plate.] (Med.) See Xanthoma.

Xan"thi*an (?), a. Of or pertaining to Xanthus, an ancient town on Asia Minor; -- applied especially to certain marbles found near that place, and now in the British Museum.

1. Tending toward a yellow color, or to one of those colors, green being excepted, in which yellow is a constituent, as scarlet, orange, etc.

2. (Chem.) (a) Possessing, imparting, or producing a yellow color; as, xanthic acid. (b) Of or pertaining to xanthic acid, or its compounds; xanthogenic. (c) Of or pertaining to xanthin.

Xanthic acid (Chem.), a heavy, astringent, colorless oil, C2H5O.CS.SH, having a pungent odor. It is produced by leading carbon disulphide into a hot alcoholic solution of potassium hydroxide. So called from the yellow color of many of its salts. Called also xanthogenic acid. -- Xanthic colors (Bot.), those colors (of flowers) having some tinge of yellow; -- opposed to cyanic colors. See under Cyanic.

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