ep·​oxy | \ i-ˈpäk-sē How to pronounce epoxy (audio) \
plural epoxies

Definition of epoxy

 (Entry 1 of 3)

: epoxy resin Incorporating such ingredients as carbon and aramid fibers, graphite, epoxies and ceramics, these corrosion-resistant composites could replace steel cables and concrete decks, cutting weight by as much as two-thirds.— J. Taylor Buckley


epoxied or epoxyed; epoxying

Definition of epoxy (Entry 2 of 3)

transitive verb

: to glue, fill, or coat with epoxy resin



Definition of epoxy (Entry 3 of 3)

1 : containing oxygen attached to two different atoms already united in some other way specifically : containing a 3-membered ring consisting of one oxygen and two carbon atoms
2 : of or relating to an epoxide

Examples of epoxy in a Sentence

Recent Examples on the Web: Noun Volcanism is the epoxy superglue that holds our ideas about the solar system together. Robert M. Thorson, WSJ, 4 Mar. 2022 Plug cracks in foundation walls with an epoxy injection system or bring in a pro for the repair. Dan Diclerico, Good Housekeeping, 3 Feb. 2022 Musk believed an epoxy-like material could be applied to the ablative chamber, which would then seep into the cracks and fill them. Eric Berger, Ars Technica, 1 Dec. 2021 To make it, layers of colored cloth and epoxy fiberglass are compressed and cooled, and then layered to from the rough handles attached around the knife tang. Larry Olmsted, Forbes, 10 Nov. 2021 In addition, Epoxy will continue to operate world scale epoxy plants in Pernis and Deer Park, Texas, and additional manufacturing operations in the United States, Germany, Spain and South Korea. Joe Cornell, Forbes, 11 Oct. 2021 One company that uses the epoxy-lining process in the Washington area is Specialized Pipe Technologies (855-817-9861; sptpipe.com). Washington Post, 7 July 2021 Dream Symphony’s hull is being built in wood – glued and laminated using the latest epoxy and composite techniques. Julia Zaltzman, Robb Report, 28 July 2021 It is made from high quality materials and features a powder epoxy steel construction with a polished stainless steel interior. Chris Hachey, BGR, 11 June 2021 Recent Examples on the Web: Verb Trump loyalists stick like epoxy to the former chief executive and are seen, rightly or not, as indispensable to the hopes of anyone running under the GOP banner. Mark Z. Barabak, Los Angeles Times, 8 July 2021 This chunk of wood was attached to a water supply by using a PVC pipe and some epoxy to prevent water from bypassing the wood filter. Popular Science, 2 Nov. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'epoxy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of epoxy


1954, in the meaning defined above


1966, in the meaning defined above


1916, in the meaning defined at sense 1

History and Etymology for epoxy


epi- + oxy

Learn More About epoxy

Dictionary Entries Near epoxy



epoxy resin

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Statistics for epoxy

Cite this Entry

“Epoxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epoxy. Accessed 21 May. 2022.

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More Definitions for epoxy


ep·​oxy | \ i-ˈpäk-sē How to pronounce epoxy (audio) \

Medical Definition of epoxy

: containing oxygen attached to two different atoms already united in some other way specifically : containing a 3-membered ring consisting of one oxygen and two carbon atoms

More from Merriam-Webster on epoxy

Thesaurus: All synonyms and antonyms for epoxy

Nglish: Translation of epoxy for Spanish Speakers


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