Eosin

[i:әsin]

Definition

(noun.) a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures.

Checker: Selma--From WordNet

Definition

(n.) A yellow or brownish red dyestuff obtained by the action of bromine on fluorescein, 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.

Editor: Tess