单词	eosin
释义	eosin /ˈiːə(ʊ)sɪn / noun [mass noun] A red fluorescent dye that is a bromine derivative of fluorescein, or one of its salts or other derivatives.The sections were then counterstained in eosin, dehydrated, cleared, and mounted with glass coverslips.... The sections were counterstained with hematoxylin and eosin. Eosin Y is an anionic or acid dye in spite of the fact that a solution of the sodium salt of eosin is basic in reaction. Origin Late 19th century: from Greek ēōs 'dawn' + -in1.
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