ˈklavəsə̇n, ˈklä- noun
( -s )
Etymology: clava- (from New Latin clavatus, specific epithet of Aspergillus clavatus, a species of fungus) + -cin (as in actinomycin, streptothricin )
: a colorless crystalline very toxic antibiotic C 7 H 6 O 4 produced by several molds (as Aspergillus clavatus and Penicillium patulum ) — called also clavatin, claviformin, patulin