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eosin n. 鮮紅色的染料 鮮紅色的染料 eosin n 1: a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures [synonym: {eosin}, {bromeosin}] 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] |
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