Eosin



[ee-uh-sin] /ˈi ə sɪn/

noun, Chemistry.
1.
Also called bromeosin, tetrabromofluorescein. a red, crystalline, water-insoluble solid, C 20 H 8 Br 4 O 5 , derived from fluorescein by bromination: used chiefly as an acid dye for dyeing silk a rose red color and as a histological stain.
2.
any of a variety of eosinlike dyes.
/ˈiːəʊsɪn/
noun
1.
Also called bromeosin. a red crystalline water-insoluble derivative of fluorescein. Its soluble salts are used as dyes. Formula: C20H8Br4O5
2.
any of several similar dyes

eosin e·o·sin (ē’ə-sən)
n.
Any of a class of red acid dyes of the xanthene group used as cytoplasmic stains and as counterstains, especially the sodium and potassium salts of certain of these dyes.

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