oxacillin

[ok-suh-sil-in]

noun Pharmacology.

a semisynthetic penicillin, C19H19N3O5S, used in the treatment of serious staphylococcal infections.

Origin of oxacillin

1960–65; (is)oxa(zole), a component of its chemical name + (peni)cillin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019