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Definition of jetstream

jetstream

/ˈdʒɛtˌstriːm/
jet · stream
Plural:jetstreams
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jetstream Lexical Profile

jetstream Game Scores & Validity

• noun

1

A narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the Earth.

Example

"Commercial pilots often use the jetstream to reduce flight times and save fuel when traveling eastward."

2

The stream of high-velocity exhaust gas discharged from a jet engine or rocket motor.

Example

"Ground crew members must stay clear of the powerful jetstream behind the aircraft."

Synonyms
View all synonyms for jetstream

• Nearby Words

jetpack
jetsam
jetsons
jetstream
jettison
jetty
jetway

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Jetstream. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/jetstream
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