designating or of certain microorganisms regarded as being beneficial to health when ingested, as bacteria or yeasts taken to supplement beneficial bacteria that already exist in the digestive tract
Origin of probioticpro- + biotic
- such a microorganism
- a food, beverage, or dietary supplement containing such microorganisms
- A nutraceutical containing live bacteria or yeast that supplements normal gastrointestinal flora, given especially after depletion of flora caused by infection or ingestion of an antibiotic drug.
- A bacterium that supplements normal gastrointestinal flora.