-
- To save this word, you'll need to log in.
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
The good news for residents is that the Arctic air mass will not linger.
—Tom Howarth, Newsweek, 12 Dec. 2024
The arctic air mass will then move east and south, bringing the coldest air of the season from Texas to New York.
—Max Golembo, ABC News, 11 Dec. 2024
But weather forecasters warned that colder air was still headed South, with an Arctic air mass spilling south out of Canada.
—Daniel Arkin, NBC News, 1 Dec. 2024
Lake-effect snowstorms occur when cold, dry air travels over open water, sucking up moisture that is released when the air mass hits land.
—Caitlin Looby, Journal Sentinel, 23 Dec. 2024
See all Example Sentences for air mass
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.
Word History
First Known Use
1882, in the meaning defined above
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 18 Jan. 2025.
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
Britannica.com: Encyclopedia article about air mass
Love words? Need even more definitions?
Merriam-Webster unabridged
Share