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prebiotic

American  
[pree-bahy-ot-ik] / ˌpri baɪˈɒt ɪk /

adjective

  1. Also existing or occurring before life, or serving as a precursor to it.

    These molecules played a critical role in the prebiotic evolution of life.

    Even if habitable conditions existed only briefly, relics of prebiotic chemistry or rudimentary life still might remain.

  2. being, having, or relating to a substance containing dietary fiber that stimulates the growth or activity of beneficial bacteria in the gastrointestinal tract.

    Oats contain the prebiotic fiber beta-glucan.

    Prebiotic food sources include bananas, leeks, onions, chicory, asparagus, and artichoke.


noun

  1. a substance containing dietary fiber that stimulates the growth or activity of beneficial bacteria in the gastrointestinal tract.

    Our group has begun to develop strategies for incorporating prebiotics into convenience foods.

prebiotic British  
/ ˌpriːbaɪˈɒtɪk /

adjective

  1. occurring or existing before the emergence of life

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of prebiotic

First recorded in 1950–55 prebiotic for def. 1, 1990–95 prebiotic for def. 2; pre- ( def. ) + biotic ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Because glycine can form under a variety of chemical conditions, scientists often use it as a marker for early prebiotic chemistry.

From Science Daily

The most effective was a synbiotic, defined as a mix of naturally fermented kefir and a broad prebiotic fiber blend.

From Science Daily

When kefir, which is rich in live microbes, is paired with diverse prebiotic fiber, the result is a synbiotic effect.

From Science Daily

The researchers propose what they call a "prebiotic gel-first" framework.

From Science Daily

Coca-Cola offers “gut healthy” prebiotic soda and zero-sugar drinks; it also sells a “better-for-you” dairy shake with more protein and less sugar than regular milk, called Fairlife.

From MarketWatch