How to Pronounce "jetstream"

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Definition

A jetstream is a fast, narrow air current found high in the atmosphere. Jetstreams influence weather and help airplanes travel faster when flying with them.

Listen in Context

The jetstream moves quickly high above the earth.

Meteorologists are tracking the jetstream to predict next week’s weather.

Pilots use the jetstream to save fuel during long flights.

A strong jetstream can change the weather quickly.