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rawin

American  
[rey-win] / ˈreɪ wɪn /

noun

  1. a method of observation of upper-air winds conducted by means of a weather balloon tracked by radar or a radio direction finder.

Etymology

Origin of rawin

1945–50; ra(dio) + win(ds-aloft)

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.