单词	polymethyl methacrylate
释义	polymethyl methacrylate noun poly·​meth·​yl methacrylate ˈpä-lē-ˌme-thəl-  : a thermoplastic resin of polymerized methyl methacrylate which is characterized by its optical clarity Example Sentences Recent Examples on the Web One substance produced this way was polymethyl methacrylate, an acrylic polymer better known as plexiglass. Sophie Bushwick, Scientific American, 26 Aug. 2022 Among options under consideration by the company are the sale of a polymethyl methacrylate division worth more than 1 billion euros ($1.1 billion) that makes glass-like polymers, the people said. Scott Deveau, Bloomberg.com, 10 May 2020 So avoid products with these P's: polyethylene, polypropylene, polyethylene terephthalate, and polymethyl methacrylate. Cotton Codinha, Allure, 8 Apr. 2019 Word History First Known Use 1936, in the meaning defined above Medical Definition polymethyl methacrylate noun poly·​meth·​yl methacrylate ˈpäl-i-ˌmeth-əl-  : a thermoplastic resin of polymerized methyl methacrylate that is used especially in hard contact lenses and in prostheses to replace bone
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