griseofulvin[gris′ē ō fo̵ol′vin, griz′-]
an oral antibiotic, CHClO, taken to treat serious fungal infections of the skin, nails, etc.
An antibiotic, C17H17ClO6, administered orally for the treatment of ringworm and other fungal infections of the skin, hair, and nails.
Origin of griseofulvinNew Latin (Pēnīcillium) grīseofulvum, species of penicillium (Medieval Latin grīseus, griseous; see griseous + Latin fulvum, neuter of fulvus, tawny; see ghel-2 in Indo-European roots) + –in.
Penicillium griseofulvum, the mould from which it is derived, and -in.