Definition of polymer noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈpɒlɪmə(r)//
; NAmE NAmE//ˈpɑːlɪmər//
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a natural or artificial substance consisting of large molecules (= groups of atoms) that are made from combinations of small simple molecules Word Originmid 19th cent.: from German, from Greek polumeros ‘having many parts’, from polu- ‘many’ + meros ‘a share’.
See the Oxford Advanced American Dictionary entry: polymer