tropopause

noun
tro·po·pause | \ˈtrō-pə-ˌpȯz, ˈträ-\

Definition of tropopause 

: the region at the top of the troposphere also : a comparable layer of a celestial body

Examples of tropopause in a Sentence

Recent Examples on the Web

Reader Vivian Mendenhall pointed out that the tropopause is between the troposphere and the stratosphere. Ned Rozell, Anchorage Daily News, "Chasing the sun from New York to Alaska on a plane," 19 May 2018 The tropopause fluctuates between about 6 and 11 miles above the earth’s surface (at an altitude north of 30,000 feet), where an abrupt change in air temperature occurs. Tyler Moss, CNT, "Why It's Faster to Fly East," 17 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tropopause.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tropopause

1918, in the meaning defined above

History and Etymology for tropopause

International Scientific Vocabulary troposphere + pause

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The first known use of tropopause was in 1918

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Britannica.com: Encyclopedia article about tropopause

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