chromotrope

chro·mo·trope

(krō'mō-trōp),
Any of several dyes containing chromotropic acid that have the property of changing from red to blue on afterchroming.

chromotrope

[krō′mətrōp]
Etymology: Gk, chroma + trepein, to turn
1 a component of tissue that stains metachromatically with metachromatic dyes.
2 any one of several dyes differentiated by numeric suffixes. chromotropic, adj.
References in periodicals archive ?
Biopsy slides were stained with hematoxylin and eosin and with Gram chromotrope (4) and examined by microscopy.
Light Microscopic Examination of Stool Specimens By Chromotrope Staining