from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An area having relatively little precipitation due to the effect of a barrier, such as a mountain range, that causes the prevailing winds to lose their moisture before reaching it.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. an area of diminished precipitation on the lee side of mountains

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an area that has little precipitation because some barrier causes the winds to lose their moisture before reaching it


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