from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A high-speed, meandering wind current, generally moving from a westerly direction at speeds often exceeding 400 kilometers (250 miles) per hour at altitudes of 15 to 25 kilometers (10 to 15 miles).
- n. A high-speed stream; a jet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of the high-speed, high-altitude air currents that circle the Earth in a westerly direction
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a high-speed high-altitude airstream blowing from west to east near the top of the troposphere; has important effects of the formation of weather fronts
Sorry, no etymologies found.