noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The altitude in the Earth's atmosphere below which turbulent mixing dominates, at about 60 miles or 100 km, which separates the heterosphere from the homosphere.

Etymology

From turbo- + -pause.

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