七碳糖 Traditional form: 七碳糖 Pinyin (reading): qītàntáng Definitions: heptose (CH2O)7, monosaccharide with seven carbon atoms Characters: 七 - seven 碳 - carbon 糖 - candy, sugar, sweets Traditional characters: 七 - seven 碳 - carbon 糖 - candy, sugar, sweets