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polymethyl methacrylate [polymethyl methacrylates]▼◼◼◼(transparent tough plastic)noun[UK: pˌɒlɪmˈiːθaɪl mˈeθəkrˌɪleɪt] [US: pˌɑːlɪmˈeθəl mˈeθəkrˌɪleɪt]
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