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 Three low-pressure systems formed a train of storms slowly moving along the jet stream — the river of air that moves weather systems — toward the Persian Gulf, said University of Pennsylvania climate scientist Michael Mann. Brittany Peterson, Twin Cities, 17 Apr. 2024 As the Arctic warms faster, the jet stream – which moves weather systems across the Earth – wobbles and weakens. Seth Borenstein, The Christian Science Monitor, 11 Mar. 2024 See all Example Sentences for jet stream 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'jet stream.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 7 May. 2024.

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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