# microfauna

> English word · Noun

## Definitions
1. The smallest of the faunal size divisions, including mainly microorganisms but also sometimes applied to the tiniest species of animal groups such as ticks, insects, etc.

## Etymology
From micro- (“small, tiny”) + fauna (“animals”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/microfauna