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
Scientists have found that ACV may help get rid of microorganisms known to cause digestive issues, such as Bacillus subtilis and Candida albicans.
—
Health, 19 May 2025
This mixture will kill any lingering mold, mildew, or other microorganisms while eliminating unpleasant odors.
10.
—Timothy Dale, Better Homes & Gardens, 14 May 2025
Probiotics help maximize the diversity of microorganisms in your gut, promoting a healthy gut microbiome.
—Maggie O'Neill, Verywell Health, 12 May 2025
The Food and Drug Administration (FDA) issued a public safety warning following the discovery of pathogenic microorganisms in two specific ink lots, which could lead to serious infections and permanent skin damage if used.
—Anna Skinner, MSNBC Newsweek, 9 May 2025
See All Example Sentences for microorganism
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Health, 19 May 2025
This mixture will kill any lingering mold, mildew, or other microorganisms while eliminating unpleasant odors.
10.
—Timothy Dale, Better Homes & Gardens, 14 May 2025
Probiotics help maximize the diversity of microorganisms in your gut, promoting a healthy gut microbiome.
—Maggie O'Neill, Verywell Health, 12 May 2025
The Food and Drug Administration (FDA) issued a public safety warning following the discovery of pathogenic microorganisms in two specific ink lots, which could lead to serious infections and permanent skin damage if used.
—Anna Skinner, MSNBC Newsweek, 9 May 2025
See All Example Sentences for microorganism
Cite this Entry
“Microorganism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microorganism. Accessed 24 May. 2025.
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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