柯林斯詞典lipid (also lipide) 1. N any of a large group of organic compounds that are esters of fatty acids (simple lipids, such as fats and waxes) or closely related substances (compound lipids, such as phospholipids): usually insoluble in water but soluble in alcohol and other organic solvents. They are important structural materials in living organisms 脂質(zhì) (Former name lipoid)[biochem] 返回 lipid劍橋詞典a substance such as a fat , oil , or wax that dissolves in alcohol but not in water and is an important part of living cells 脂，脂質(zhì) 返回 lipid