Substratosphere

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The area of the atmosphere directly below the stratosphere.

Synonyms

All synonyms
aerospaceaerosphereairair holeair pocketair space

Etymology

From sub- + stratosphere.

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