黒くろい雨あめMeaningsExpressionNoun1. black rain; heavily polluted, radioactive rain sometimes following an atmospheric nuclear explosion (esp. that of Hiroshima)Kanji used黒black雨rainComposed of黒くろいblack; dark; blackish; sun-tanned (skin); suspicious; criminal; illicit; darkened and dirty; sooty; covered in dirt; …I-adjective雨あめrain; rainy day; rainy weather; the November suit (in hanafuda)Noun