[ noun ] (medicine) an opportunistic infection by a fungus of the genus Aspergillus; characterized by inflammation and lesions of the ear and other organs

[ noun ] (medicine) severe respiratory disease of birds that takes the form of an acute rapidly fatal pneumonia in young chickens and turkeys

[ noun ] (medicine) disease especially in agricultural workers caused by inhalation of Aspergillus spores causing lumps in skin and ears and respiratory organs