Word Study
eosin
WORDNET DICTIONARY
Noun eosin has 1 sense
- eosin(n = noun.substance) bromeosin - a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures; Array is a kind of fluorescein, fluoresceine, fluorescent dye, resorcinolphthalein
CIDE DICTIONARY
eosin, n. [Gr. dawn.].
A yellow or brownish red dyestuff obtained by the action of bromine on fluoresceïn, and named from the fine rose-red which it imparts to silk. It is also used for making a fine red ink. Its solution is fluorescent. [1913 Webster]
OXFORD DICTIONARY
eosin, n. a red fluorescent dyestuff used esp. as a stain in optical microscopy.
Etymology
Gk eos dawn + -IN
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