mi·​cro·​bi·​o·​ta | \ ˌmī-krō-bī-ˈō-tə How to pronounce microbiota (audio) \

Definition of microbiota

: the microscopic organisms of a particular environment : microbiome sense 1 It's very possible that the master key to unlocking chronic disease will turn out to be the health and composition of the microbiota in your gut.— Michael Pollan and Ruth Reichl

Other Words from microbiota

microbiotic \ ˌmī-​krō-​bī-​ˈä-​tik How to pronounce microbiota (audio) \ adjective
the microbiotic environment of the gut

Examples of microbiota in a Sentence

Recent Examples on the Web In clinical trials, fecal microbiota transplants are estimated to be more than 90 percent effective at clearing C. diff infections. Wired, 9 July 2022 The gut microbiota is the community of microorganisms that live in the gastrointestinal tract. The Salt Lake Tribune, 7 June 2022 Yet, these types of studies cannot prove the gut microbiota directly modifies aerobic fitness. Patrick Wilson, Outside Online, 11 Sep. 2020 The gut is packed with microbiota that either need to be fed to grow and strengthen, or need to be deprived in order to weaken. Pamela Nisevich Bede, Outside Online, 26 Mar. 2020 One issue that scientists are grappling with is exactly where this extra microbiota diversity comes from. Patrick Wilson, Outside Online, 11 Sep. 2020 In other words, their gut microbiota could simply be a byproduct of their lifestyle. Patrick Wilson, Outside Online, 11 Sep. 2020 Navedo and his students cast cannon nets over the birds and catch 30 to 40 of them at a time to sample their gut microbiota. Jim Robbins, Smithsonian Magazine, 4 Jan. 2022 Studies show that the microbiota of obese people differs from that of lean individuals. Robert J. Davis, Time, 24 Sep. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microbiota.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of microbiota

1914, in the meaning defined above

History and Etymology for microbiota

micro- + biota

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Time Traveler for microbiota

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The first known use of microbiota was in 1914

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Last Updated

17 Jul 2022

Cite this Entry

“Microbiota.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microbiota. Accessed 13 Aug. 2022.

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More Definitions for microbiota


mi·​cro·​bi·​o·​ta | \ -bī-ˈōt-ə How to pronounce microbiota (audio) \

Medical Definition of microbiota

: the microscopic organisms of a particular environment : microbiome sense 1 The more we learn about our microbiota, however, the more we realize how easy it is for helpful microbes to get caught in the line of fire between an antibiotic and its intended target.— Nathan Wolfe, National Geographic … the microbiota on the tongue differ from those species living in plaque on teeth.— Mel Rosenberg, Scientific American

Other Words from microbiota

microbiotic \ -​bī-​ˈät-​ik How to pronounce microbiota (audio) \ adjective
microbiotic life


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