air mass

noun

Definition of air mass

: 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 The back-to-back storms, which are moving from the Gulf of Alaska, will also deliver a cooler air mass that is likely to linger into the weekend. Justin Ray, Los Angeles Times, 7 Dec. 2021 Sunday is a brand new day, featuring a brand new air mass that will be noticeably less muggy and much more stable overall. Washington Post, 17 July 2021 The deluge arrived as a slow-moving cold front entered the region, trying to dislodge an excessively hot and humid air mass. Washington Post, 15 Aug. 2021 The first colder air mass will infiltrate the East over the next couple of days and into the weekend. Judson Jones, CNN, 17 Nov. 2021 The remnants of a cold front stalled out just to the southeast of the District with a warm and humid air mass in place. Washington Post, 17 Sep. 2021 Temperatures in downtown Los Angeles were about 10 degrees below normal due to a cooler air mass that was moving in from the ocean, said Rich Thompson, meteorologist with the National Weather Service in Oxnard. Alex Wigglesworth, Los Angeles Times, 30 Oct. 2021 The National Weather Service says a low pressure system will bring an unstable air mass to the region possibly dropping heavier showers at times, with isolated thunder and small hail. oregonlive, 6 Oct. 2021 This comfortable air mass will stick around for a few more day with a sunny to mostly sunny sky expected through Friday. Dallas News, 23 Sep. 2021

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

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First Known Use of air mass

1882, in the meaning defined above

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Time Traveler for air mass

Time Traveler

The first known use of air mass was in 1882

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Dictionary Entries Near air mass

air marshal

air mass

air mass weather

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Statistics for air mass

Last Updated

11 Jan 2022

Cite this Entry

“Air mass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20mass. Accessed 17 Jan. 2022.

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More from Merriam-Webster on air mass

Britannica.com: Encyclopedia article about air mass

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