核酮糖 Traditional form: 核酮糖 Pinyin (reading): hétóngtáng Definitions: ribulose (type of sugar) Characters: 核 - core, kernel; nut, seed; atom 酮 - ketone 糖 - candy, sugar, sweets Traditional characters: 核 - core, kernel; nut, seed; atom 酮 - ketone 糖 - candy, sugar, sweets