fuchsin
noun
fuch·sin ˈfyük-sən 
-ˌsēn
-ˌsēn variants or fuchsine
: a dye that is produced by oxidation of a mixture of aniline and toluidines and yields a brilliant bluish red
Word History
Etymology
French fuchsine, probably from New Latin Fuchsia; from its color
First Known Use
1865, in the meaning defined above
Medical Definition
fuchsin
noun
fuch·sin
variants or fuchsine
ˈfyük-sən -ˌsēn
-ˌsēn : a dye that is produced by oxidation of a mixture of aniline and toluidines, that yields a brilliant bluish red, and that is used in carbolfuchsin paint, in Schiff's reagent, and as a biological stain