Any of several aromatic resins, such as balsam of Peru and Tolu balsam, that contain considerable amounts of benzoic acid, cinnamic acid, or both, or their esters.

• 香脂一种芳香脂类树脂，如秘鲁香脂和塔鲁香脂，含有大量的苯甲酸、肉桂酸，或同时含有这两种酸或其酸酯