| amaranth | 1. An imaginary flower supposed never to fade. 2. <botany> A genus of ornamental annual plants (Amaranthus) of many species, with green, purplish, or crimson flowers. 2. A colour inclining to purple. Origin: L. Amarantus, Gr, unfading, amaranth; priv. + to quench, cause to wither, fr. A root meaning to die, akin to E. Mortal; so called because its flowers do not soon wither: cf. F. Amarante. The spelling with th seems to be due to confusion with Gr. Flower. Source: Websters Dictionary (01 Mar 1998) |
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| amaranth solution | A 1% solution of amaranth (trisodium naphthol sulfonic acid), a synthetic vivid red dye, stable in acid and intensified in sodium hydroxide solution; used as a red or pink colourant in liquid pharmaceuticals. (05 Mar 2000) |
| amaranthum | 1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonate (trisodium salt);an azo dye; a soluble reddish brown powder, the colour turning to magenta red in solution; used as a food and cosmetic colouring agent, and occasionally in histology. Origin: G. Amaranthon, a never-fading flower (05 Mar 2000) |