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Not true, please see post #13 Jets do utilise it but that's not where the name comes from. The actual word 'jet' has been in use since the late 17th century. https://www.etymonline.com/word/jet

Jet streams were first discovered in the 1920s by a Japanese meteorologist named Wasaburo Ooishi. He used weather balloons to track upper level winds high above Mount Fuji. The term “jet stream" wasn't used until 1939, though, when a German meteorologist first used the term in a research paper...