Polymethyl methacrylate. Also: a salt or ester of polymethacrylic acid; a polymer of an ester of methacrylic acid.
1930s. From poly- + methacrylate, after polymethacrylic.
英语词典包含464360条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。