# mesostate

> English word · Noun

## Definitions
1. An intermediate physical state of matter between solid and liquid, in which the molecules have more freedom of movement than when locked in a crystal lattice, but less freedom of movement than when in the liquid state.
2. A composite state of a physical system that is determined by the overall configuration of many microstates; e.g. the heat of a substance (mesostate), which is made up of the aggregate of motions of many molecules (microstate).
3. A description of an aspect of a geographical system at a level between complete detail (the microstate) and a simple summary statistic or percentage (the macrostate).
4. An intermediate metabolic product in the formation of anastates or catastates.

## Etymology
From meso- + state. Sense 4 possibly purely in analogy with anastate and catastate.

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