polymethyl methacrylate

noun
poly·​meth·​yl methacrylate | \ˈpä-lē-ˌme-thəl- \

Definition of polymethyl methacrylate 

: a thermoplastic resin of polymerized methyl methacrylate which is characterized by its optical clarity

First Known Use of polymethyl methacrylate

1936, in the meaning defined above

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The first known use of polymethyl methacrylate was in 1936

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polymethyl methacrylate

noun
poly·​meth·​yl methacrylate | \ˈpäl-i-ˌmeth-əl- \

Medical Definition of polymethyl methacrylate 

: a thermoplastic resin of polymerized methyl methacrylate that is used especially in hard contact lenses and in prostheses to replace bone

More from Merriam-Webster on polymethyl methacrylate

Britannica.com: Encyclopedia article about polymethyl methacrylate

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