tropopause[trō′pə pôz′, träp′ə-]
tropopause definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an atmospheric transition zone or shell located between the troposphere and the stratosphere at an altitude of c. 10 to 20 km (c. 6 to 12 mi), in which temperatures and atmospheric stability begin to increase with increasing altitude
Origin: tropo(sphere) plush pause
tropopause definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The boundary between the troposphere and the stratosphere varying in altitude from approximately 8 kilometers (5 miles) at the poles to approximately 18 kilometers (11 miles) at the equator.
tropopause - Science Definition
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.