TROPAEOLIN

Etymology

Noun

tropaeolin (countable and uncountable, plural tropaeolins)

Any of several orange dyes of very complex composition: tropaeolin O (acid orange 6, chrysoine resorcinol), tropaeolin OO (acid orange 5), or tropaeolin OOO (acid orange 7).

Source: Wiktionary


Tro*pæ"o*lin, n. (Chem.)

Definition: A name given to any one of a series of orange-red dyestuffs produced artificially from certain complex sulphonic acid derivatives of azo and diazo hydrocarbons of the aromatic series; -- so called because of the general resemblance to the shades of nasturtium (Tropæolum).

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

3 February 2025

CRAZY

(adjective) possessed by inordinate excitement; “the crowd went crazy”; “was crazy to try his new bicycle”


coffee icon

Coffee Trivia

Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

coffee icon