A colorless or slightly yellow,transparent,brittle protein formed by boiling the specially prepared skin,bones,and connective tissue of animals and used in foods,drugs,and photographic film.

• 明胶，凝胶一种无色或浅黄色的透明胶状蛋白，通过水煮特殊加工过的皮、骨和动物韧带形成，使用于食品、药物和摄影胶片中。