Pronunciation: (lak"tō-bu-sil'us), [key]
—pl. -cil•liPronunciation: (-sil'ī). [key] Bacteriol.
any long, slender, rod-shaped, anaerobic bacterium of the genus Lactobacillus, that produces large amounts of lactic acid in the fermentation of carbohydrates, esp. in milk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.