mesopause
noun
me·so·pause
ˈme-zə-ˌpȯz 
ˈmē-,
-sə-
: the upper boundary of the mesosphere where the temperature of the atmosphere reaches its lowest point
Examples of mesopause in a Sentence
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Visit the burial site of Ham the Astrochimp, a fetching primate who uneventfully but quite involuntarily plunged through the mesopause himself in 1961.
—
John Phillips, Car and Driver, 9 Jan. 2023
Aura satellite showed temperatures near the mesopause increased in the past few days and are about average for this time of year.
—Kasha Patel, Washington Post, 1 July 2022
This altitude corresponds with the mesopause, which is the outermost physical boundary of Earth's atmosphere where meteors typically burn up.
—Eric Betz, Discover Magazine, 5 May 2021
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John Phillips, Car and Driver, 9 Jan. 2023
Aura satellite showed temperatures near the mesopause increased in the past few days and are about average for this time of year.
—Kasha Patel, Washington Post, 1 July 2022
This altitude corresponds with the mesopause, which is the outermost physical boundary of Earth's atmosphere where meteors typically burn up.
—Eric Betz, Discover Magazine, 5 May 2021
Cite this Entry
“Mesopause.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mesopause. Accessed 3 Nov. 2025.
Copy CitationKids Definition
mesopause
noun
me·so·pause
ˈmez-ə-ˌpȯz
ˈmēz-,
ˈmēs-,
ˈmes-
: the upper boundary of the mesosphere at which the temperature of the atmosphere reaches its lowest point
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