核国家 Traditional form: 核國家 Pinyin (reading): héguójiā Definitions: nuclear nations Characters: 核 - core, kernel; nut, seed; atom 国 - country, nation, state; national 家 - house, home, residence; family Traditional characters: 核 - core, kernel; nut, seed; atom 國 - country, nation, state; national 家 - house, home, residence; family