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

Fermentation adds depth and complexity and appeals to those seeking natural probiotics. —Amber Love Bond, Forbes, 6 Jan. 2025

Apple cider vinegar works to break down lingering residue, while probiotics and botanicals like mallow flower and radish root help restore balance and calm irritation. —Erin Parker, Allure, 3 Jan. 2025

Meanwhile, probiotics might help with immunity through their beneficial effects on gut health—although a 2024 study concluded that such supplements did not help at-risk individuals avoid COVID-19 infection, based on a review of four studies. —Dan Perry, Newsweek, 2 Jan. 2025

Honey helps probiotics reach the gut Depositphotos Researchers from the University of Illinois Urbana-Champaign found that adding a tablespoon of honey to yogurt helps beneficial probiotics survive in the gut. —New Atlas, 30 Dec. 2024

Word History

Etymology

pro- entry 2 + -biotic (as in antibiotic)

First Known Use

1974, in the meaning defined above

Medical 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