microbiota

noun

mi·​cro·​bi·​o·​ta ˌmī-krō-bī-ˈō-tə How to pronounce microbiota (audio)
: 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
microbiotic adjective
the microbiotic environment of the gut

Examples of microbiota in a Sentence

Recent Examples on the Web
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However, some people’s gut microbiota do not convert the food compounds into urolithin as efficiently, or at all. Allison Tsai, Verywell Health, 18 July 2025 The findings build on Chen's earlier work, which showed that sweeteners can disrupt hormonal regulation and gut microbiota balance. Daniella Gray, MSNBC Newsweek, 13 July 2025 And these mice gained more weight in five days than a group of rodents who had not cycled between diets nor had a microbiota transfer from the yo-yo dieting animals. New Atlas, 1 July 2025 Patients typically display lower diversity in gut microbiota and the microbiota present may be imbalanced – a state known as dysbiosis. Rosie McCall, Discover Magazine, 23 June 2025 See All Example Sentences for microbiota

Word History

Etymology

micro- + biota

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of microbiota was in 1914

Browse Nearby Words

Cite this Entry

“Microbiota.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microbiota. Accessed 4 Aug. 2025.

Medical Definition

microbiota

noun
mi·​cro·​bi·​o·​ta -bī-ˈōt-ə How to pronounce microbiota (audio)
: 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
microbiotic adjective
microbiotic life
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