: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units

Examples of polymer in a Sentence

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It's composed mainly of a flexible biocompatible polymer, and is adhered to the face beside the eye via a medical adhesive. — Ben Coxworth october 23, New Atlas, 23 Oct. 2026 This is due to the slow action of microbes on synthetic plastic polymers that are currently in use. — Muskan Bhatia, Interesting Engineering, 21 Oct. 2026 The inner screen has a titanium backplate, and the nanotexture cover layer is made of a polymer that Apple says is scratch-resistant. — Eric Zeman, PC Magazine, 21 Oct. 2026 It's powered by a film-forming polymer that creates a lightweight, flexible film on the lips. — Sheryl George, Allure, 20 Oct. 2026 See All Example Sentences for polymer

Word History

Etymology

International Scientific Vocabulary, back-formation from polymeric, from Greek polymerēs having many parts, from poly- + meros part — more at merit entry 1

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of polymer was in 1866

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Cite this Entry

“Polymer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polymer. Accessed 26 Oct. 2026.

Kids Definition

: a chemical compound or mixture of compounds that is formed by combination of smaller molecules and consists basically of repeating structural units

Medical Definition

: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units

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