柯林斯词典fatty acid 1. N any of a class of aliphatic carboxylic acids, such as palmitic acid, stearic acid, and oleic acid, that form part of a lipid molecule 脂肪酸 返回 fatty acid剑桥词典any of a group of chemicals , most of which are involved in the way cells operate in the body 脂肪酸 返回 fatty acid