microfauna
noun
mi·cro·fau·na
ˌmī-krō-ˈfȯ-nə 
-ˈfä-
1
: minute animals
especially
: those invisible to the naked eye
the soil microfauna
2
: a small or strictly localized fauna (as of a microenvironment)
Examples of microfauna in a Sentence
Recent Examples on the Web
Reefs in other isolated locations, such as the Red Sea, Persian Gulf and Mozambique Canal, also are likely to have unique microfauna and microbiofauna.
—
Dinah Voyles Pulver, USA TODAY, 2 June 2023
The museum's exhibits also include some of the world's largest megafauna, thought to be 50,000 to 100,000 years old, and a variety of microfauna.
—CNN, 17 July 2022
To get the award-winning shot, Weston used a 1970s microscope and created a saline solution to hold the microfauna.
—Elizabeth Gamillo, Smithsonian Magazine, 23 Aug. 2021
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Dinah Voyles Pulver, USA TODAY, 2 June 2023
The museum's exhibits also include some of the world's largest megafauna, thought to be 50,000 to 100,000 years old, and a variety of microfauna.
—CNN, 17 July 2022
To get the award-winning shot, Weston used a 1970s microscope and created a saline solution to hold the microfauna.
—Elizabeth Gamillo, Smithsonian Magazine, 23 Aug. 2021
Cite this Entry
“Microfauna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microfauna. Accessed 12 Jul. 2025.
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