eosin
[ee-uh-sin]
|
noun Chemistry.
Also called bromeosin, tetrabromofluorescein. a red, crystalline, water-insoluble solid, C20H8Br4O5, derived from fluorescein by bromination: used chiefly as an acid dye for dyeing silk a rose red color and as a histological stain.
any of a variety of eosinlike dyes.
Also e·o·sine [ee-uh-sin, -seen] /ˈi ə sɪn, -ˌsin/.
Origin of eosin
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for eosine
Historical Examples of eosine
The dyes with the ponceaus are faster than those with eosine or safranine.
The Practical Ostrich Feather DyerAlexander Paul
The eosine plate was underexposed, but brought up everything fairly well except the scarlet hat, which came up like black.
Very good results in soap may be obtained by mixing a fast blue, as ultramarine or cobalt blue, with a red as rhodamine or eosine.
Soap-Making ManualE. G. Thomssen
In the latter mixture they stain really with the methylene blue salt of eosine.
Histology of the BloodPaul Ehrlich
Potassa turns rosolic acid and coralline from an orange-red to a bright red, while it produces no change in eosine.
eosin
eosine (ˈiːəʊsɪn, -ˌsiːn)
noun
Word Origin for eosin
C19: from Greek ēōs dawn + -in; referring to the colour it gives to silk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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eosin
[ē′ə-sən]
n.
The American Heritage® Stedman's Medical Dictionary
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