microorganism
noun
mi·cro·or·gan·ism
ˌmī-krō-ˈȯr-gə-ˌni-zəm 
: an organism (such as a bacterium or protozoan) of microscopic or ultramicroscopic size
Examples of microorganism in a Sentence
Recent Examples on the Web
When CiCLO® fabric ends up in a landfill with ample moisture and microorganisms, these biodegradable spots are activated, allowing the fabric to mineralize at rates comparable to natural fibers like wool.
—
Sj Studio, Sourcing Journal, 10 Sep. 2024
The multi-stage filtration system also means that the X16 should remove the most common water impurities, such as heavy metals, odors, chemical residues, and microorganisms.
—Kyle J. Russell, USA TODAY, 5 Sep. 2024
Sign up The emissions come from microorganisms releasing carbon dioxide while feeding on materials exposed to the drying lakebed.
—Devika Rao, theweek, 13 Aug. 2024
Identifying the type of bacteria or other microorganism causing the infection can help ensure patients are treated quickly with the appropriate antibiotics.
—Deidre McPhillips, CNN, 24 July 2024
See all Example Sentences for microorganism 
Sj Studio, Sourcing Journal, 10 Sep. 2024
The multi-stage filtration system also means that the X16 should remove the most common water impurities, such as heavy metals, odors, chemical residues, and microorganisms.
—Kyle J. Russell, USA TODAY, 5 Sep. 2024
Sign up The emissions come from microorganisms releasing carbon dioxide while feeding on materials exposed to the drying lakebed.
—Devika Rao, theweek, 13 Aug. 2024
Identifying the type of bacteria or other microorganism causing the infection can help ensure patients are treated quickly with the appropriate antibiotics.
—Deidre McPhillips, CNN, 24 July 2024
See all Example Sentences for microorganism
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microorganism.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near microorganism
Cite this Entry
“Microorganism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microorganism. Accessed 18 Sep. 2024.
Copy CitationKids Definition
microorganism
noun
mi·cro·or·gan·ism
ˌmī-krō-ˈȯr-gə-ˌniz-əm
: an organism (as a bacterium) of microscopic or less than microscopic size
Medical Definition
microorganism
noun
mi·cro·or·gan·ism
-ˈȯr-gə-ˌniz-əm
: an organism of microscopic or ultramicroscopic size
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