Any of a group of phospholipids found in egg yolks and the plasma membrane of plant and animal cells, used as an emulsifier in a wide range of commercial products, including foods, cosmetics, paints, and plastics.

• 卵磷脂任一组存在于蛋黄和植物质膜及动物细胞中的磷酸酯，在许多商品中用作乳化剂，包括食物、化装品、颜料和塑料