probiotic
noun
pro·bi·ot·ic
prō-bī-ˈä-tik 
-bē-ˈä-
: a microorganism (such as lactobacillus) that when consumed (as in a food or a dietary supplement) maintains or restores beneficial bacteria to the digestive tract
also
: a product or preparation that contains such microorganisms compare prebiotic
probiotic
adjective
Examples of probiotic in a Sentence
Recent Examples on the Web
Regularly taking probiotics may improve your scalp health and dandruff symptoms.
—
Heidi Cope, Health, 4 Feb. 2025
Hum’s Gut Instinct is made with 10 strains of probiotics.
—Marilyn La Jeunesse, Glamour, 31 Jan. 2025
The studies didn't all reach the same conclusions about how probiotics affect weight.6
In 67% of the studies, participants who took probiotics had lower body weight and body mass index (BMI).
—Amber J. Tresca, Verywell Health, 29 Jan. 2025
The amount of probiotics in water would also vary by location, and the notion that health-promoting bacteria reside in raw water has not been proved.
—Bill Sullivan, The Conversation, 27 Jan. 2025
See all Example Sentences for probiotic 
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Heidi Cope, Health, 4 Feb. 2025
Hum’s Gut Instinct is made with 10 strains of probiotics.
—Marilyn La Jeunesse, Glamour, 31 Jan. 2025
The studies didn't all reach the same conclusions about how probiotics affect weight.6
In 67% of the studies, participants who took probiotics had lower body weight and body mass index (BMI).
—Amber J. Tresca, Verywell Health, 29 Jan. 2025
The amount of probiotics in water would also vary by location, and the notion that health-promoting bacteria reside in raw water has not been proved.
—Bill Sullivan, The Conversation, 27 Jan. 2025
See all Example Sentences for probiotic
Dictionary Entries Near probiotic
Cite this Entry
“Probiotic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/probiotic. Accessed 21 Feb. 2025.
Copy CitationMedical Definition
probiotic
noun
pro·bi·ot·ic
prō-bī-ˈät-ik, -bē-
: a microorganism (such as lactobacillus or bifidobacterium) that when consumed (as in a food or a dietary supplement) maintains or restores beneficial bacteria to the digestive tract
also
: a product or preparation that contains such microorganisms compare prebiotic
probiotic
adjective
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