carbol-fuchsin solution /kär′bolfo͝ok″sin/ [L, carbo, coal; Leonard Fuchs, German botanist, 1501–1566] , 1. a preparation used in the treatment of superficial fungal infections. It contains boric acid, phenol, resorcinol, fuchsin, acetone, and alcohol in water. Also called carbol-fuchsin, Castellani’s paint. 2. a staining agent for use in acid-fast stains.
