[ lak-toh-buh-sil-uh s ]
/ ˌlæk toʊ bəˈsɪl əs /

noun, plural lac·to·ba·cil·li [lak-toh-buh-sil-ahy] /ˌlæk toʊ bəˈsɪl aɪ/. Bacteriology.

any long, slender, rod-shaped, anaerobic bacterium of the genus Lactobacillus, that produces large amounts of lactic acid in the fermentation of carbohydrates, especially in milk.

Origin of lactobacillus

< New Latin (1901); see lacto-, bacillus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lactobacillus

British Dictionary definitions for lactobacillus

/ (ˌlæktəʊbəˈsɪləs) /

noun plural -li (-laɪ)

any Gram-positive rod-shaped bacterium of the genus Lactobacillus, which ferments carbohydrates to lactic acid, for example in the souring of milk: family Lactobacillaceae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for lactobacillus

[ lăk′tō-bə-sĭləs ]


Any of various rod-shaped, nonmotile, aerobic bacteria of the genus Lactobacillus that ferment lactic acid from sugars and are the causative agents in the souring of milk.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.