blue mold Hear it!

blue mold definition

blue mold

any of various species of a fungus (genus Penicillium) that produce bluish masses of spores: some species yield penicillin and some are used to ripen certain cheeses

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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