1) Magenta 2) Red dye 
A non-specific term referring to any of several red rosanilin dyes used as stains in histology and bacteriology. ... Origin: Leonhard Fuchs, German botantist, 1501-1506 ... (05 Mar 2000) ... 
(fūk´sin) any of several red to purple dyes, sometimes specifically basic fuchsin. acid fuchsin a mixture of sulfonated fuchsins; used in various complex stains. basic fuchsin a histologic stain, containing predominantly pararosaniline and rosaniline.
Synthetic rosaniline dye. Used as a red dye (in Schiff&`s reagent) and as an anti-fungal agent.
Type: Term Pronunciation: fūk′sin Definitions: 1. A nonspecific term referring to any of several red rosanilin dyes used as stains in histology and bacteriology.
a greenish, water-soluble, solid, coal-tar derivative, obtained by the oxidation of a mixture of aniline and the toluidines, that forms deep-red solutions: used chiefly as a dye.