epoxide

/ˈipɑksaɪd/

//ˈipɑksaɪd// noun

"epoxide" is a 7-letter English headword indexed on PlainSpell.

The verdict

“epoxide” is uncommon English (frequency #93,668 among 18,836 “E” headwords), classed as a noun. The kind of spelling people second-guess.

#93,668
frequency rank, English
18,836
“E” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - 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.

Key facts for epoxide
PropertyValue
Headwordepoxide
LanguageEnglish
Part of speechNoun
IPA/ˈipɑksaɪd/
Letters7
Frequency rank#93,668
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “epoxide” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). epoxide lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

epoxide is uncommon English at frequency #93,668 among 18,836 “E” headwords, classed as anoun, transcribed /ˈipɑksaɪd/. Rarity is why readers land here mid-draft. 2 senses are on record.

epoxide doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From ep- + oxy. The correct English form is epoxide, spelled E-P-O-X-I-D-E.

Definition

  1. 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.
  2. 2
    Any similar compound in which an ether linkage has been made across a larger ring.

Etymology

From ep- + oxy.

Synonyms

alkylene oxide

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "epoxide"?
"epoxide" is spelled E-P-O-X-I-D-E. The IPA pronunciation is /ˈipɑksaɪd/.
What does "epoxide" mean?
As a noun, "epoxide" means: 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.
How do you pronounce "epoxide"?
The IPA (International Phonetic Alphabet) transcription for "epoxide" is /ˈipɑksaɪd/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "epoxide"?
From ep- + oxy. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “epoxide”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is E-P-O-X-I-D-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈipɑksaɪd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list