- polymethyl methacrylate
- poly·meth·yl methacrylate 'päl-i-.meth-əl- n a thermoplastic resin of polymerized methyl methacrylate that is used esp. in hard contact lenses and in prostheses to replace bone
* * *(PMMA) poly·meth·yl meth·ac·ryl·ate (PMMA) (pol″e-meth″əl meth-akґrəl-āt) a thermoplastic acrylic resin formed by polymerization of methyl methacrylate; it is used extensively in medicine and dentistry. Written also polymethylmethacrylate.
Medical dictionary. 2011.