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polyethylene 音標拼音: [p,ɑli'ɛθəl,in] n. 聚乙烯 聚乙烯 polyethylene n 1: a lightweight thermoplastic; used especially in packaging and insulation [synonym: {polyethylene}, {polythene}] macromolecule \mac`ro*mol"e*cule\, n. (Chem., Biochem.)
A very large molecule, especially a polymer having from hundreds to many thousands of atoms, such as {DNA}, {RNA}, {protein}, {polysaccharide}, {polyethylene}, {polycarbonate}, etc. [PJC]
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