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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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 This bout of storms is caused by a cool air mass from Canada meeting the heat dome that has brought extreme temperatures across much of the Lower 48 in recent weeks, the weather service said. Patrick Smith, NBC News, 16 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 22 Nov. 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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