霓虹国 Traditional form: 霓虹國 Pinyin (reading): Níhóngguó Definitions: (slang) Japan (loanword from the Japanese word for Japan, "Nihon") Characters: 霓 - rainbow; colorful, variegated 虹 - rainbow 国 - country, nation, state; national Traditional characters: 霓 - rainbow; colorful, variegated 虹 - rainbow 國 - country, nation, state; national