n. An antibiotic, C17H17ClO6, administered orally for the treatment of ringworm and other fungal infections of the skin, hair, and nails. [New Latin (Pēnīcillium) grīseofulvum, species of penicillium (Medieval Latin grīseus, griseous; see GRISEOUS + Latin fulvum, neuter of fulvus, tawny; see ghel-2 in the Appendix of Indo-European roots) + -IN.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.