microfauna
[ mahy-kroh-faw-nuh ]
/ ˌmaɪ kroʊˈfɔ nə /
noun, plural mi·cro·fau·nas, mi·cro·fau·nae [mahy-kroh-faw-nee] /ˌmaɪ kroʊˈfɔ ni/. (used with a singular or plural verb)
Biology.
microscopic animals.
Ecology.
the fauna of a microhabitat.