tropaeolin

See also: tropæolin

English

Alternative forms

Etymology

From Tropaeolum +‎ -in.

Noun

tropaeolin (countable and uncountable, plural tropaeolins)

  1. 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).