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
Yogurt Many types of yogurt contain probiotics, which are live microorganisms that may provide health benefits (when consumed in adequate amounts).
—
Trista Chan, Health, 12 June 2026
Kimchi contains probiotics and fiber that support gut health, digestion, and the immune system.
—Stephanie Brown, Verywell Health, 9 June 2026
The shampoo includes cica extract and probiotics that are said to balance and soothe the scalp’s microbiome while biotin helps support strong, healthy strands.
—Essence Wiley, InStyle, 8 June 2026
Greek Yogurt Fuel up on protein, calcium, and probiotics with Greek yogurt.
—Kirsten Nunez, Martha Stewart, 5 June 2026
See All Example Sentences for probiotic
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Trista Chan, Health, 12 June 2026
Kimchi contains probiotics and fiber that support gut health, digestion, and the immune system.
—Stephanie Brown, Verywell Health, 9 June 2026
The shampoo includes cica extract and probiotics that are said to balance and soothe the scalp’s microbiome while biotin helps support strong, healthy strands.
—Essence Wiley, InStyle, 8 June 2026
Greek Yogurt Fuel up on protein, calcium, and probiotics with Greek yogurt.
—Kirsten Nunez, Martha Stewart, 5 June 2026
See All Example Sentences for probiotic
Cite this Entry
“Probiotic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/probiotic. Accessed 17 Jun. 2026.
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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