diglycerideWiktionary 原文构词拆分di-前缀Two. · Double, twice the quantity.+glyceride词根/词干词源说明From di- + glyceride.释义（英文）名词 Noun(organic chemistry) a lipid, an ester of glycerol and two fatty acids (the same or different, in the 1,2 or 1,3 positions)