Definition of "jetstream" []

• Alternative spelling of jet stream. (noun)

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• "Ask folks in Chicago and other parts of the Midwest where crops were nearly ruined and cities went underwater after record swirls of jetstream from the overheated Gulf continued to inundate the region."
• "The jetstream is moving north this summer, cutting down on the mixing of cold and hot air just above the equator."
• ""The mild weather has been caused mainly by the position of the Atlantic jetstream, which is allowing autumn to be extended," he said."