# miasmatism

> English word · Noun

## Definitions
1. The obsolete belief that diseases are caused by a miasma, or noxious form of air.

## Etymology
From miasma + -ism.

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