polymer

noun

poly·​mer ˈpä-lə-mər How to pronounce polymer (audio)
: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units
polymeric adjective
polymerlike adjective

Examples of polymer in a Sentence

Recent Examples on the Web
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This conductive organic polymer sits at the core of the innovation. Christopher McFadden, Interesting Engineering, 1 Mar. 2026 One aspect is a thermoplastic healing substance 3D-printed as a polymer interlayer onto the fiber reinforcement. New Atlas, 23 Feb. 2026 Composite windows are made of a mixture of wood material and polymers. Brandee Gruener, Southern Living, 23 Feb. 2026 But polymers can also be natural and derived from nature. Cara Ocobock, The Conversation, 6 Feb. 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 3 Mar. 2026.

Kids Definition

polymer

noun
poly·​mer ˈpäl-ə-mər How to pronounce polymer (audio)
: a chemical compound or mixture of compounds that is formed by combination of smaller molecules and consists basically of repeating structural units
polymeric adjective

Medical Definition

polymer

noun
poly·​mer ˈpäl-ə-mər How to pronounce polymer (audio)
: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units

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