Standard Lemma guide

epoxide

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: /ˈipɑksaɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

Any of a class of organic compound, cyclic ethers, having a three-membered ring; they are prepared by the selective oxidation of alkenes or by ring-closure of halohydrins; used to make plastics.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any similar compound in which an ether linkage has been made across a larger ring.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From ep- + oxy.

Across languages

Translations

17 source translations are retained for this English entry.

  • Catalan: epòxid — cyclic ether
  • Chinese Mandarin: 环氧化合物 (huán yǎng huàhéwù) — cyclic ether
  • Czech: epoxid — cyclic ether
  • Estonian: epoksiidid — cyclic ether
  • Finnish: epoksidi — cyclic ether
  • French: époxyde — cyclic ether
  • German: Epoxid — cyclic ether
  • Greek: εποξείδιο (epoxeídio) — cyclic ether
  • Italian: epossido — cyclic ether
  • Korean: 에폭시드 (epoksideu) — cyclic ether
  • Macedonian: епоксид (epoksid) — cyclic ether
  • Polish: epoksyd — cyclic ether
  • Polish: epitlenek — cyclic ether
  • Polish: oksiran — cyclic ether
  • Portuguese: epóxido — cyclic ether
  • Russian: эпоксиды (epoksidy) — cyclic ether
  • Spanish: epóxido — cyclic ether