n 1  cap  :  a genus of fungi of the family Moniliaceae comprising the blue molds found chiefly on moist nonliving organic matter (as decaying fruit), characterized by the erect branching conidiophores ending in tufts of club-shaped cells from which conidia are formed in chains, and including molds useful in economic fermentation and the production of antibiotics  2  pl  -lia   :  any mold of the genus Penicillium .
 
 
 
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