noun🔗ShareTropopauseThe zone of transition between the troposphere and the stratosphere (approximately 13 kilometers). The tropopause normally occurs at an altitude of between 25,000 and 45,000 feet in polar and temperate zones. It occurs at 55,000 feet in the tropics."Airplanes often experience turbulence when passing through the tropopause, the boundary between the troposphere and the stratosphere. "Les avions subissent souvent des turbulences lorsqu'ils traversent la tropopause, la limite entre la troposphère et la stratosphère.weathergeographyenvironmentscienceChat with AIVocabulary GamePractice Reading