# troposphere

> English word · Noun · frequency rank #65,586

## Definitions
1. The lower levels of the atmosphere extending from the surface of the Earth or another celestial body up to the tropopause. It is characterized by convective air movements and a large vertical temperature change.

## Etymology
Borrowed from French troposphère. Equivalent to tropo- + -sphere.

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