Origin of lactobacillus
First Known Use: 1924
Medical Definition of lactobacillus
1 capitalized : a genus of gram-positive nonmotile lactic-acid-forming bacteria of the family Lactobacillaceae including various commercially important lactic acid bacteria
2plural lactobacilli \-ˌī also -ˌē\play : any bacterium of the genus Lactobacillus
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