C20: from New Latin, from Penicillium griseofulvum dierckx (fungus from which it was isolated), from Medieval Latin griseus grey + Latin fulvus reddish yellow
griseofulvin in American English
(ˌgrɪsioʊˈfʊlvɪn; ˌ grɪzioʊˈfʊlvɪn)
noun
an oral antibiotic, C17H17ClO6, taken to treat serious fungal infections of the skin, nails, etc.