tropopause

Definitions

General Science

Astronomy

  • The dividing line in the Earth’s atmosphere between the troposphere and the stratosphere. The tropopause is the site of a temperature inversion between temperatures well below freezing at the top of the troposphere to temperatures of up to 30° in the stratosphere.

Aviation

  • noun the level at which the troposphere and the stratosphere meet
http://www.dictionarycentral.com/definition/tropopause.html