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Synonyms

epoxy

American  
[ih-pok-see] / ɪˈpɒk si /

adjective

  1. having the structure of an epoxide.


noun

  • epoxies
    plural
  1. Also called epoxy resin. any of a class of resins derived by polymerization from epoxides: used chiefly in adhesives, coatings, electrical insulation, solder mix, and castings.

verb (used with object)

epoxied, epoxying
  1. to bond (two materials) by means of an epoxy resin.

epoxy British  
/ ɪˈpɒksɪ /

adjective

  1. of, consisting of, or containing an oxygen atom joined to two different groups that are themselves joined to other groups

    epoxy group

  2. of, relating to, or consisting of an epoxy resin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. short for epoxy resin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
epoxy Scientific  
/ ĭ-pŏk′sē /
  1. Any of various artificial resins made of chains of epoxide rings. Epoxies are tough, very adhesive, and resistant to chemicals. They are used to make protective coatings and glues.

  2. Also called epoxy resin


epoxy Cultural  
  1. A high-strength adhesive, often made of two different materials that must be mixed together just prior to use.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of epoxy

First recorded in 1915–20; ep- + oxy- 2

Explanation

Epoxy is a very strong type of glue. Epoxy is used in the construction of airplanes and cars, among other things. While epoxy can be used for a variety of substances made of a certain chemical compound, from paints to plastics, it most commonly means an industrial-strength adhesive. Epoxy is so sticky and so strong that it can hold together the parts of a boat or a bicycle, and keep the fin of a surfboard attached, even in the water. The word epoxy combines epi-, "in addition" and oxy, from oxygen.

Keep Reading on Vocabulary.com

Vocabulary lists containing epoxy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Avcoat is a mix of silica fibers, phenolic microballoons, and epoxy resin that chars and erodes, removing heat away.

From Barron's ● Apr. 10, 2026

Made from sleek ceramic epoxy over fiberglass, the stacked dishes are piled tilting this way and that.

From Los Angeles Times ● Nov. 25, 2025

It was essentially a collection of 17 fuel tanks in a sheath of carbon fiber cloth, epoxy and paper — a skin so fragile that it could be damaged by an elbow poke.

From New York Times ● May 8, 2024

In their testing, the researchers used a shape-memory polymer named E44 epoxy, a stiff and glass-like plastic at room temperature.

From Science Daily ● Apr. 29, 2024

The walls were painted with thick, gobby epoxy paint, and all the electrical outlets were plugged around the edges with a gooey material.

From "The Hot Zone" by Richard Preston

The basic materials -- usually epoxies or acrylics -- come mostly from petrochemical feedstocks.

From Science Daily ● May 15, 2024

Cracks in concrete can be repaired with special epoxies that are applied with a common caulk gun you probably own.

From Washington Post ● Apr. 18, 2017

Carbon nanotubes: These extremely strong structures made from sheets of rolled graphene have been used in everything from bicycle components to industrial epoxies.

From Slate ● Sep. 6, 2016

Still, it was here where Mr. Kern was introduced to epoxies that were left as samples by traveling salesmen.

From New York Times ● Mar. 28, 2016

Profit increased 16 percent in the performance-systems unit on sales of synthetic rubber and automotive materials, and performance products advanced 17 percent amid gains in epoxies and polyurethanes.

From BusinessWeek ● Jul. 27, 2011

The small stage in the corner sat empty; the sticker-covered windows, Knupp indicated, would be taken out, epoxied and saved for posterity.

From Seattle Times ● Feb. 23, 2023

A new pair of circular mirrors were epoxied in place.

From Washington Post ● Sep. 21, 2020

The demonstrators clasped hands with one other and then epoxied themselves in the doorjambs.

From Fox News ● Jul. 27, 2019

I sat in the back middle seat and remained still, as if epoxied to the burgundy vinyl.

From Salon ● Jan. 12, 2014

The four marble tabletops arrived from Gem Marble and were epoxied to their bases.

From New York Times ● Jul. 27, 2010

Together, they cleaned up the seams and did all the caulking and epoxying.

From New York Times ● Oct. 4, 2021

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