硬脂酸 Traditional form: 硬脂酸 Pinyin (reading): yìngzhīsuān Definitions: stearic acid stearate Characters: 硬 - firm, hard, strong; obstinate 脂 - fat, grease, lard, oil 酸 - tart, sour; spoiled; acid Traditional characters: 硬 - firm, hard, strong; obstinate 脂 - fat, grease, lard, oil 酸 - tart, sour; spoiled; acid