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.
XANTHIDE
Xan"thide, n. [See Xantho-.] (Chem.)
Defn: A compound or derivative of xanthogen. [Archaic]
XANTHIDIUM
Xan*thid"i*um, n.; pl. Xanthidia (#). [NL., fr. Gr. xanqo`s yellow.]
(Bot.)
Defn: 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.
XANTHIN
Xan"thin, n. [Gr. xanqo`s yellow.]
1. (Physiol. Chem.) A crystalline nitrogenous body closely related to both uric acid and hypoxanthin, present in muscle tissue, and occasionally found in the urine and in some urinary calculi. It is also present in guano. So called from the yellow color of certain of its salts (nitrates).
2. (Chem.) A yellow insoluble coloring matter extracted from yellow flowers; specifically, the coloring matter of madder. [Formerly written also xanthein.]
3. (Chem.) One of the gaseous or volatile decomposition products of the xanthates, and probably identical with carbon disulphide. [Obs.]