Dictionary.com

tropopause

[ trop-uh-pawz, troh-puh- ]
/ ˈtrɒp əˌpɔz, ˈtroʊ pə- /

noun Meteorology.

the boundary, or transitional layer, between the troposphere and the stratosphere.

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Origin of tropopause

First recorded in 1915–20; tropo- + pause

Words nearby tropopause

tropocollagen, tropology, tropomyosin, troponin, troponin I, tropopause, tropophilous, tropophyte, troposphere, tropospheric scatter, tropotaxis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for tropopause

tropopause
/ (ˈtrɒpəˌpɔːz) /

noun

meteorol the plane of discontinuity between the troposphere and the stratosphere, characterized by a sharp change in the lapse rate and varying in altitude from about 18 km (11 miles) above the equator to 6 km (4 miles) at the Poles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for tropopause

tropopause
[ trō′pə-pôz′, trŏp′ə- ]

The boundary between the upper troposphere and the lower stratosphere, varying in altitude from about 8 km (5 mi) at the poles to 18 km (11 mi) at the equator.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.