aspergillin

\\-lə̇n\ noun (-s)

Etymology: International Scientific Vocabulary aspergill- (from New Latin Aspergillus) + -in

1. : an amorphous black pigment found in the spores of various fungi of the genus Aspergillus

2. : an antibacterial substance obtained from cultures of two molds (Aspergillus flavus and A. fumigatus) reported to possess activity against both gram-positive and gram-negative bacteria