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

Greek yogurt is an excellent source of protein and probiotics. —Chelsea Rae Bourgeois, Rdn, Health, 20 Jan. 2025

Other dietary supplements to consider taking include omega-3 fatty acids, probiotics, and fiber. —Jonathan Purtell, Verywell Health, 19 Jan. 2025

While some health authorities tout the benefits of these specific live bacteria and yeasts, research on probiotics still has a long way to go. —Don Rauf, EverydayHealth.com, 14 Jan. 2025

With its first foray into supplemented instant coffee, the brand has gone beyond mushrooms to include prebiotics, probiotics, collagen, and vitamins. —Adam Campbell-Schmitt, Bon Appétit, 8 Jan. 2025

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