# mesocyclone

> English word · Noun

## Definitions
1. An area of vertical atmospheric rotation in supercell thunderstorms, which signals the threat of a possible tornado.

## Etymology
From meso- + cyclone.

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