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.
Xan"thide (?), n. [See Xantho-.] (Chem.) A compound or derivative of xanthogen. [Archaic]
||Xan*thid"i*um (?), n.; pl. Xanthidia (#). [NL., fr. Gr. xanqo`s yellow.] (Bot.) A genus of minute unicellular algæ of the desmids. These algæ have a rounded shape and are armed with glochidiate or branched aculei. Several species occur in ditches, and others are found fossil in flint or hornstone.