脂酸 Traditional form: 脂酸 Pinyin (reading): zhīsuān Definitions: see 脂肪酸 (zhīfángsuān) Characters: 脂 - fat, grease, lard, oil 酸 - tart, sour; spoiled; acid Traditional characters: 脂 - fat, grease, lard, oil 酸 - tart, sour; spoiled; acid