jet stream
noun
Simple Definition of jet stream
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: a strong current of fast winds high above the Earth's surface
Source: Merriam-Webster's Learner's Dictionary
Full Definition of jet stream
: 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
1947
First Known Use of jet stream
1947
JET STREAM Defined for Kids
jet stream
noun
Definition of jet stream for Students
: high-speed winds blowing from a westerly direction several miles above the earth's surface
Learn More about jet stream
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Britannica.com: Encyclopedia article about jet stream
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