stearic acid
stearic-acid的词性：
n.（名词）
1. A colorless, odorless, waxlike fatty acid, CH3(CH 2) 16COOH, occurring in natural animal and vegetable fats, used in making soaps, candles, lubricants, and other products.
硬脂酸：一种无色、无味、蜡状的脂肪酸，分子式为CH3(CH 2) 16COOH，见于动物和植物的天然脂肪中，用于制造肥皂、蜡烛、润滑剂和其它产品