metacrolein 📖 中文释义 [化] 介丙烯醛; 三聚丙烯醛 📘 English Definition(英文释义) n. A polymeric modification of acrolein obtained byheating it with caustic potash. It is a crystalline substance having anaromatic odor. ← metacritique M 字母词表 metacrylic acid ester →