EOSINE
- eosin (a red dye) [n EOSINES]
- a red dye, also EOSIN [n -S]
- 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
- a red fluorescent dye C20H8Br4O5 obtained by the action of bromine on fluorescein and used especially in cosmetics and as a toner