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

Some frozen yogurts provide probiotics, though the amount varies and not all products contain meaningful levels of live cultures. — Jillian Kubala, Health, 7 July 2026

According to Taylor, the probiotics in kombucha can help restore the balance of beneficial bacteria in the gut and offer other benefits. — Embry Roberts, Martha Stewart, 2 July 2026

Some research suggests that probiotics, especially strains like Lactobacillus or Bifidobacterium, may help reduce symptoms of acid reflux and GERD, such as heartburn and regurgitation. — Verywell Health, 1 July 2026

Other emerging supplements include ashwagandha, elderberry, collagen, hyaluronic acid, probiotics and prebiotics, according to the research. — Angelica Stabile, FOXNews.com, 30 June 2026

Word History

Etymology

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

First Known Use

1974, in the meaning defined above

Rhymes for probiotic

• aprotic
• aquatic
• biotic
• chaotic
• cirrhotic
• demotic
• despotic
• dichotic
• erotic
• euphotic
• exotic
• fibrotic

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