# mesocosm

> English word · Noun

## Definitions
1. Any system larger than a microcosm but smaller than a macrocosm, especially when used as an outdoor experimental system that examines the natural environment under controlled conditions.

## Etymology
From meso- + -cosm.

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