<p><strong>Noun</strong></p><ul><li>context: Chemistry</li><li>also called: bromeosin, tetrabromofluorescein</li><li>definition: a red, crystalline, water-insoluble solid, C₃₆H₈Br₄O₅, derived from fluorescein by bromination</li><li>uses: chiefly as an acid dye for dyeing silk a rose red color and as a histological stain</li><li>description: any of a variety of eosinlike dyes</li></ul>