[{"Bold_text": "noun", "List Items": ["Also called bromeosin , tetrabromofluorescein .a red, crystalline, water-insoluble solid, C20H8Br4O5, derived from fluorescein by bromination: used chiefly as an acid dye for dyeing silk a rose red color and as a histological stain.", "any of a variety of eosinlike dyes."]}]