fyüˈmigəsə̇n noun
( -s )
Etymology: fumiga- (from New Latin fumigatus, specific epithet of Aspergillus fumigatus ) + -cin (as in actinomycin, streptothricin ) — more at fumagillin
: a crystalline antibiotic acid C 32 H 44 O 8 obtained from a soil fungus ( Aspergillus fumigatus ) — called also helvolic acid