lac·​to·​ba·​cil·​lus | \ ˌlak-tō-bə-ˈsi-ləs How to pronounce lactobacillus (audio) \

Definition of lactobacillus

: any of a genus (Lactobacillus) of bacteria that produce lactic acid

Examples of lactobacillus in a Sentence

Recent Examples on the Web Other ingredients include lactobacillus ferment and pomegranate seed oil, which intensely soothe and nourish the skin. Grooming Playbook, The Salt Lake Tribune, 7 Apr. 2022 Data from multiple studies, including ones involving athletes and active individuals, has found that taking a probiotic with lactobacillus or bifidobacterium strains might help decrease the frequency and duration of these infections. Pamela Nisevich Bede, Outside Online, 26 Mar. 2020 For instance, today a type of bacteria called lactobacillus is used in probiotic creams and serums for all the wrong reasons, says Teo Soleymani, M.D., a dermatologist at UCLA Health. Jessica Chia, Allure, 23 Nov. 2021 Streptococcus and lactobacillus are good for restoring healthy gut flora, especially in the colon. Michael Pollick,, 27 Mar. 2021 This particular product relies on a bio-tech probiotic lactobacillus that supports the skin’s microbiome. Ahmed Zambarakji, Robb Report, 10 Aug. 2021 Baby probiotics typically contain one of two kinds: lactobacillus or bifidobacterium. Ana Sanchez,, 5 Apr. 2021 Certainly, Beard Science’s ales filled with lactobacillus bacteria strains fail to fall under the strict, short recipe list of barley, hops and water that Reinheitsgebot allows. Kelly Dearmore, Dallas News, 5 May 2021 Basically, the lactobacillus is pre-digesting the sugar in the cabbage for you. Audrey Bruno, SELF, 30 Oct. 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lactobacillus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lactobacillus

1924, in the meaning defined above

History and Etymology for lactobacillus

New Latin

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The first known use of lactobacillus was in 1924

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Last Updated

20 Apr 2022

Cite this Entry

“Lactobacillus.” Dictionary, Merriam-Webster, Accessed 24 May. 2022.

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More Definitions for lactobacillus


lac·​to·​ba·​cil·​lus | \ ˌlak-tō-bə-ˈsil-əs How to pronounce lactobacillus (audio) \

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
2 plural lactobacilli\ -​ˌī also -​ˌē \ : any bacterium of the genus Lactobacillus

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