ˌblastōˈmīs ə n noun
( -s )
Etymology: blastomyc- (from New Latin Blastomyces dermatitidis , fungus species) + -in — more at blastomyces
: a preparation of growth products of the causative agent ( Blastomyces dermatitidis ) of North American blastomycosis that is used especially to test for this disease