lactobacillus
noun
lac·to·ba·cil·lus
ˌlak-tō-bə-ˈsi-ləs 
: any of a genus (Lactobacillus) of bacteria that produce lactic acid
Examples of lactobacillus in a Sentence
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Case in point: Our favorite base makeup is formulated with skin-loving, acne-fighting ingredients like salicylic acid, hyaluronic acid, anti-inflammatory ingredients (like lactobacillus ferment), and beyond.
—
Annie Blackman, Allure, 7 Sep. 2024
Plus, skin-care mainstay Centella Asiatica (also known as cica) soothes and calms the scalp, while lactobacillus ferment, a probiotic, balances the microbiome to prevent inflammation.
—Jenny Berg, Allure, 1 Nov. 2024
In healthy women without bacterial vaginosis, lactobacillus crispatus is the dominant bacteria and in those in a dysbiotic state there’s less lactobacillus crispatus and a more diverse microbiota, including bacteria like gardnerella vaginalis.
—Sara Novak, Discover Magazine, 12 June 2024
Four different forms of retinol are joined by nourishing shea butter and lactobacillus ferment lysate to help maintain a healthy skin barrier and protect it from the harsh effects of retinol.
—Devon Abelman, Glamour, 17 Sep. 2024
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Annie Blackman, Allure, 7 Sep. 2024
Plus, skin-care mainstay Centella Asiatica (also known as cica) soothes and calms the scalp, while lactobacillus ferment, a probiotic, balances the microbiome to prevent inflammation.
—Jenny Berg, Allure, 1 Nov. 2024
In healthy women without bacterial vaginosis, lactobacillus crispatus is the dominant bacteria and in those in a dysbiotic state there’s less lactobacillus crispatus and a more diverse microbiota, including bacteria like gardnerella vaginalis.
—Sara Novak, Discover Magazine, 12 June 2024
Four different forms of retinol are joined by nourishing shea butter and lactobacillus ferment lysate to help maintain a healthy skin barrier and protect it from the harsh effects of retinol.
—Devon Abelman, Glamour, 17 Sep. 2024
See all Example Sentences for lactobacillus
Dictionary Entries Near lactobacillus
Cite this Entry
“Lactobacillus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactobacillus. Accessed 22 Feb. 2025.
Copy CitationMedical Definition
lactobacillus
noun
lac·to·ba·cil·lus
ˌlak-tō-bə-ˈsil-əs
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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