rain shadow From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounAn area of diminished precipitation on the lee side of mountains Related wordsSynonymsrainshadowshaftleesiderain showershadowwall cloudmountainsiderainscapedrop shadowrain cloudlake effectmountainslopelapseshadowingdownslopingraindrift References Wiktionary — rain shadow Wikipedia — rain shadow