jet stream

noun

: a long narrow meandering current of high-speed winds near the tropopause blowing from a generally westerly direction and often exceeding a speed of 250 miles (402 kilometers) per hour

Examples of jet stream in a Sentence

Recent Examples on the Web
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Global warming changed the behavior of the jet stream, and a new pattern is now clear: sapping moisture from the West Coast and freezing the East, writes guest columnist Shih-Yu Simon Wang. City Councilman Jeff Okrepkie lost everything in the 2017 Tubbs wildfire. Ryan Fonseca, Los Angeles Times, 15 Jan. 2025 The strong atmospheric currents of the polar jet stream also play a role in the region's weather. Samuel Granados, New York Times, 14 Jan. 2025 This is where an area of low pressure gets detached from the jet stream and remains static for a long period, potentially drawing in moist air and subjecting the region beneath to prolonged adverse weather. Geraldine Castro, WIRED, 28 Nov. 2024 The flooding occurred after the region was struck by a DANA − a Spanish acronym that refers to a type of storm system that gets cut off from the jet stream and may remain relatively stationary, according to NASA and the European Space Agency. Kate S. Petersen, USA TODAY, 12 Nov. 2024 See all Example Sentences for jet stream 

Word History

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of jet stream was in 1947

Dictionary Entries Near jet stream

Cite this Entry

“Jet stream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20stream. Accessed 21 Jan. 2025.

Kids Definition

jet stream

noun
: a long narrow wandering current of high-speed winds blowing from a generally westerly direction several miles above the earth's surface

More from Merriam-Webster on jet stream

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