Troposphere

noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 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.
  2. 2
    the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude) wordnet

Synonyms

All synonyms
aerospaceaerosphereairair holeair pocketair space

Example

More examples

"The layer of our atmosphere closest to the surface of Earth is called the troposphere. “Tropos” means change. This layer gets its name from the weather that is constantly changing and mixing up the gases in this part of our atmosphere."

Etymology

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

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.