- the relatively dry area on the leeward side of high ground in the path of rain-bearing winds
WordReference Random House Unabridged Dictionary of American English © 2026
rain′ shad′ow, [Meteorol.]
- Meteorologya region in the lee of mountains that receives less rainfall than the region windward of the mountains.
- 1900–05
Collins Concise English Dictionary © HarperCollins Publishers::
rain shadow n