air mass

noun

: a body of air extending hundreds or thousands of miles horizontally and sometimes as high as the stratosphere and maintaining as it travels nearly uniform conditions of temperature and humidity at any given level

Examples of air mass in a Sentence

Recent Examples on the Web
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However, an air mass can sometimes block a storm, driving it north or northeast toward the Baja California peninsula and the west coast of Mexico. Matthew Bloch, New York Times, 29 Aug. 2024 Frost will be more limited on Saturday night as a milder air mass continues to build into the area. Haadiza Ogwude, The Enquirer, 18 Oct. 2024 For awhile, forecasters didn’t give the unstable air mass much of a chance to develop into a tropical storm, let alone a monster hurricane. Shawn Tully, Fortune, 10 Oct. 2024 Our soupy air mass promotes the chance for some hit-or-miss downpours into the evening. Ian Livingston, Washington Post, 24 July 2024 See all Example Sentences for air mass 

Word History

First Known Use

1882, in the meaning defined above

Time Traveler
The first known use of air mass was in 1882

Dictionary Entries Near air mass

Cite this Entry

“Air mass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20mass. Accessed 1 Dec. 2024.

Kids Definition

air mass

noun
: a body of air extending hundreds or thousands of miles sideways and sometimes as high as the stratosphere and having nearly the same conditions of temperature and humidity at any single level

More from Merriam-Webster on air mass

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