noun Chemistry.
- an organic chemical that contains a group consisting of an oxygen atom bound to two already connected atoms, usually carbon (epoxy group).Compare epoxy(def 2).
noun
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- a compound containing an oxygen atom joined to two different groups that are themselves joined to other groups
- (as modifier)epoxide resin
- A ring-shaped compound consisting of an oxygen atom bonded to two other atoms, usually of carbon, that are already bonded to each other. Epoxides are used to make epoxies.