mesopause Hear it!

mesopause definition

meso·pause (mes′ə pôz′, mez′-)

noun

an atmospheric transition zone or shell located between the mesosphere and the thermosphere at an altitude of c. 80 to 85 km (c. 50 to 53 miles) in which temperatures begin to rise with increasing altitude

Etymology: meso(sphere) + pause

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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