coloring+matter
51bixin — A monomethyl ester of a 24 carbon branched unsaturated dicarboxylic acid; a carotenoid (a carotene dioic acid); the orange red coloring matter from seeds of Bixa orellana; the ethyl ester is used as a food and drug colorant. SEE ALSO: annotto. *… …
52litmus — A blue coloring matter obtained from Roccella tinctoria and other species of lichens, the principal component of which is azolitmin; used as an indicator (reddened by acids and turned blue again by alkalies). [a corruption of lacmus, fr. Dutch… …
53orcein — A natural dye derived from orcinol by treatment with air and ammonia, which as a purple dye complex is used in various histologic staining methods. * * * or·ce·in ȯr sē ən n a purple nitrogenous dye that is the essential coloring matter of… …
54Crystal violet — IUPAC name Tris(4 (dimethylamino)phenyl)methylium chloride[ …
55xanthous — (adj.) 1829, from Gk. xanthos yellow, of unknown origin. Prefix form xantho is used in many scientific words; Cf. xanthein (1857) soluble yellow coloring matter in flowers, Huxley s Xanthochroi (1867) blond, light skinned races of Europe (with… …
56dye — [[t]daɪ[/t]] n. v. dyed, dye•ing 1) tex a coloring material or matter 2) tex a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc 3) color or hue, esp. as produced by dyeing 4) tex to color with or as if with a …
57paint — [[t]peɪnt[/t]] n. 1) a substance composed of solid coloring matter suspended in a liquid medium and applied as a protective or decorative coating to various surfaces, or to canvas or other materials in producing a work of art 2) an application of …
58crock — crock1 [kräk] n. [ME crokke < OE crocca, akin to Ger krug < ? IE base * ger , to turn, twist > CRIB] 1. an earthenware pot or jar 2. a broken piece of earthenware ☆ 3. [clip of a crock of shit] Slang something that is absurd, insincere,… …
59pigment — vi. pigmentized, pigmentizing [pig′mənt] n. [ME < L pigmentum < base of pingere, to PAINT] 1. coloring matter, usually in the form of an insoluble powder, mixed with oil, water, etc. to make paints 2. any coloring matter in the cells and… …
60dyewood — noun any wood from which dye is obtained • Hypernyms: ↑wood * * * ˈ ̷ ̷ˌ ̷ ̷ noun Usage: often attributive 1. : a wood (as logwood or fustic) from which coloring matter is extracted for dyeing dyewood extract 2 …
