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[trop-uh-pawz, troh-puh-] /ˈtrɒp əˌpɔz, ˈtroʊ pə-/
noun, Meteorology
the boundary, or transitional layer, between the troposphere and the stratosphere.
Origin of tropopause
1915-20; tropo- + pause Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for tropopause


(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
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tropopause in Science
  (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 © 2002. Published by Houghton Mifflin. All rights reserved.
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