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Definition of probiotic

probiotic

/ˌproʊbaɪˈɑːtɪk/
pro · bi · ot · ic

Adverb:probiotically
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Plural:probiotics
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Adjective:probiotic
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probiotic Lexical Profile

probiotic Game Scores & Validity

• noun

1

A live microorganism (such as a bacterium or yeast), or a dietary supplement or food product containing such microorganisms, consumed to maintain or restore beneficial bacteria in the digestive tract.

Example

"Her doctor recommended taking a daily probiotic after she finished her course of antibiotics."

• adjective

1

Relating to, containing, or promoting the growth of live microorganisms that provide health benefits to the host, especially by maintaining or restoring beneficial gut flora.

Example

"Fermented foods like kefir and kimchi are prized for their probiotic properties."

Antonyms
View all antonyms for probiotic

Word Nuance & Usage

Do not confuse 'probiotic' (live beneficial microorganisms themselves) with 'prebiotic' (indigestible dietary fibers that nourish and stimulate the growth of those beneficial microorganisms in the gut).

• Rhymes for probiotic

Word Origin & Etymology

Coined in the mid-20th century as an antonym to 'antibiotic', combining the Latin prefix 'pro-' (for, in favor of) with Ancient Greek 'biōtikos' (pertaining to life), from 'bios' (life).

Cite this Entry


Wordmom. (2026). Definition of Probiotic. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/probiotic
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