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 The guest bedroom has an epoxy floor with some of Biton's vinyl records. Mark Dunphy, San Antonio Express-News, "Photos: San Antonio builder selling his own sleek Southtown home," 8 Feb. 2021 Salvage something already broken or buy an inexpensive plate or mug for an exercise in stress relief; then enhance its appearance with one of six epoxy colors. Meghan Kavanaugh, USA TODAY, "41 thoughtful DIY gifts anyone would love," 4 Nov. 2020 This can be easily changed with sandpaper or epoxy, but most easily on one-piece bolt-action stocks, not two-piece lever, auto, pump, or single-shot stocks. Ron Spomer, Outdoor Life, "How to Buy Your First Nice Hunting Rifle," 2 Nov. 2020 The concourse floors are a soft gray flecked with brown giving the impression of concrete, although the floors' epoxy surface is more comfortable for walking. Mark Lamster, Dallas News, "Sorry, haters: Globe Life Field, the new home of the Rangers, is a great place to watch a ballgame — and a serious work of architecture," 16 Oct. 2020 Once the ports are glued in place, use a putty knife to spread a thick coating of epoxy sealer along the crack, including over the base of each injection port. Joseph Truini, Popular Mechanics, "How to Waterproof Your Basement," 12 Oct. 2020 Terrazzo features chips of marble, glass, or quartz flecked into a cement or epoxy-resin base, allowing for an infinite number of color combinations and a range of size options for the chips themselves. Sarah Baird, House Beautiful, "Kitsch," 14 Sep. 2020 The 5,823-square-foot house includes five bedrooms, five bathrooms, a home gym and an art room with an epoxy floor for easy cleanup. Kim Palmer, Star Tribune, "Former Twins pitcher Glen Perkins' estate in Lakeville is on market for $2.5M," 14 Aug. 2020 Some reorganization, a fresh paint job, and a new epoxy floor all happened in a flurry along with the bedroom makeover. Jessica Bennett, Better Homes & Gardens, "The Final Reveals from the Spring 2020 One Room Challenge Offer So Much Interior Design Inspiration," 24 June 2020 Recent Examples on the Web: Verb 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, "Wood filters, hot rocks, and seven other ways to purify water in the wild," 2 Nov. 2020

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.

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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

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Statistics for epoxy

Last Updated

13 Feb 2021

Cite this Entry

“Epoxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epoxy. Accessed 3 Mar. 2021.

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More Definitions for epoxy



English Language Learners Definition of epoxy

: a type of glue


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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