Found 2 items, similar to eosin.
English → English (WordNet) Definition: eosin eosin n : a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures [syn: bromeosin]
English → English (gcide) Definition: Eosin Eosin \E"o*sin\, n. [Gr. ? dawn.] (Chem.) A yellow or brownish red dyestuff obtained by the action of bromine on fluoresce["i]n, 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]