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Medical Term:


Pronunciation: pen′i-sil′ē-ŭm

Definition: A genus of fungi (class Ascomycetes, order Aspergillales), some species of which yield various antibiotic substances and biologicals; P. citrinum yields citrinin; Penicillium claviforme, Penicillium expansum, and Penicillium patulum yield patulin; Penicillium chrysogenum yields penicillin; Penicillium griseofulvum yields griseofulvin; Penicillium notatum yields penicillin and notatin; Penicillium cyclopium and Penicillium puberulum yield penicillic acid; Penicillium purpurogenum and Penicillium rubrum yield rubratoxin. Penicillium marneffei is a true pathogen in Southeast Asia in bamboo rats.

[see penicillus]