Dictionary.com
Thesaurus.com

microbiota

American  
[mahy-kroh-bahy-oh-tuh] / ˌmaɪ kroʊ baɪˈoʊ tə /

noun

(used with a singular or plural verb)
  1. the microorganisms, both flora and fauna, that inhabit a particular region, when considered collectively.

  2. the microorganisms that live in the human body, symbiotically or pathologically.


Etymology

Origin of microbiota

First recorded in 1925–30; micro- ( def. ) + biota ( def. )

Compare meaning

How does microbiota compare to similar and commonly confused words? Explore the most common comparisons:

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.

See Examples For:

As the mice aged, the researchers transplanted the stored samples back into the same animals through a process known as fecal microbiota transplantation, or FMT.

From Science Daily May 9, 2026

The findings, published in Cell Host & Microbe, could also help scientists better understand how gut microbiota influences overall health and disease.

From Science Daily Apr. 9, 2026

Scientists have long known that gut microbiota plays a role in colorectal cancer.

From Science Daily Apr. 9, 2026

Earlier studies have shown that bacteria living in the gut, known collectively as the gut microbiota, can influence how much serotonin the body produces.

From Science Daily Mar. 13, 2026

However, scientists believe that conditions inside the intestine, including the gut microbiota and the chemical messenger serotonin, play an important role.

From Science Daily Mar. 13, 2026

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training