Dictionary
pen•i•cil•li•um
Pronunciation: (pen"u-sil'ē-um), [key]—
n.,
—pl. -cil•li•ums, -cil•li•aPronunciation: (-sil'ē-u). [key]
any fungus of the genus
Penicillium, certain species of which are used in cheesemaking and as the source of penicillin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.