basic dye

noun

a dye soluble in acid and insoluble in basic solution, consisting mostly of amino or imino compounds of xanthene or triarylmethane: used mainly for inks, carbon paper, and typewriter ribbon.

Origin of basic dye

First recorded in 1890–95

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

basic dye in Medicine

Any of various usually synthetic dyes that produce brilliant colors, react as bases, and are usually used as stains.basic stain