Standard Lemma guide

dioxide

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.

  • Received-Pronunciation: /daɪˈɒksaɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Atlantic-Canada, General-American: /daɪˈɑksaɪd/
  • Canada, dialectal: /daɪˈɒksaɪd/ of the US
  • Australian: /dɑeˈɔksɑed/
  • New-Zealand: /daɪˈɒksaɪd/
  • New-Zealand: [dɑe̯ˈɔ̟ksɑe̯d]
  • Philippines: /ˈdaɪɔksaɪd/
  • rhymes with -ɒksaɪd
  • CMU ARPABET: D AY0 AA1 K S AY2 D Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any oxide containing two oxygen atoms in each molecule.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: binoxide, deutoxide

Antonyms: none provided

2

noun

Meaning 2

an oxide containing two atoms of oxygen in the molecule

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: oxide

Narrower terms: nitrogen dioxide, carbon dioxide, CO2, carbonic acid gas, chlorine dioxide, sulfur dioxide, sulphur dioxide

History

Etymology

Etymology tree Proto-Indo-European *dwóh1 Proto-Indo-European *dwi- Proto-Hellenic *dwi- Ancient Greek δῐ- (dĭ-)bor. Latin di-bor. English di- Proto-Indo-European *h2eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh1- Proto-Indo-European *-os Proto-Indo-European *ǵénh1os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygène Proto-Indo-European *h2eḱ- Proto-Indo-European *-éh1ti Proto-Indo-European *-yeti Proto-Indo-European *-éh1yeti Proto-Indo-European *h2eḱéh1yeti Proto-Italic *akēō Latin aceō Proto-Indo-European *dheh1-der. Proto-Italic *-iðos Latin -idus Latin acidusbor. French acide blend French oxidebor. English oxide English dioxide From di- + oxide.

Across languages

Translations

32 source translations are retained for this English entry.

  • Armenian: երկօքսիդ (erkōkʻsid) — any oxide containing two oxygen atoms in each molecule
  • Catalan: diòxid — any oxide containing two oxygen atoms in each molecule
  • Chinese Cantonese: 二氧化物 (ji6 joeng5 faa3 mat6) — any oxide containing two oxygen atoms in each molecule
  • Chinese Mandarin: 二氧化物 (èryǎnghuàwù) — any oxide containing two oxygen atoms in each molecule
  • Dutch: dioxide — any oxide containing two oxygen atoms in each molecule
  • Esperanto: dioksido — any oxide containing two oxygen atoms in each molecule
  • Estonian: dioksiid — any oxide containing two oxygen atoms in each molecule
  • Finnish: dioksidi — any oxide containing two oxygen atoms in each molecule
  • French: dioxyde — any oxide containing two oxygen atoms in each molecule
  • Georgian: ორჟანგი (oržangi) — any oxide containing two oxygen atoms in each molecule
  • German: Dioxid — any oxide containing two oxygen atoms in each molecule
  • Greek: διοξείδιο (dioxeídio) — any oxide containing two oxygen atoms in each molecule
  • Hungarian: dioxid — any oxide containing two oxygen atoms in each molecule
  • Ido: dioxido — any oxide containing two oxygen atoms in each molecule
  • Indonesian: dioksida — any oxide containing two oxygen atoms in each molecule
  • Irish: dé-ocsaíd — any oxide containing two oxygen atoms in each molecule
  • Italian: diossido — any oxide containing two oxygen atoms in each molecule
  • Italian: biossido — any oxide containing two oxygen atoms in each molecule
  • Japanese: 二酸化物 (nisankabutsu) — any oxide containing two oxygen atoms in each molecule
  • Korean: 이산화물 (isanhwamul) — any oxide containing two oxygen atoms in each molecule
  • Latvian: dioksīds — any oxide containing two oxygen atoms in each molecule
  • Malay: dioksida — any oxide containing two oxygen atoms in each molecule
  • Polish: dwutlenek — any oxide containing two oxygen atoms in each molecule
  • Portuguese: bióxido — any oxide containing two oxygen atoms in each molecule
  • Romanian: bioxid — any oxide containing two oxygen atoms in each molecule
  • Romanian: dioxid — any oxide containing two oxygen atoms in each molecule
  • Russian: диокси́д (dioksíd) — any oxide containing two oxygen atoms in each molecule
  • Russian: двуо́кись (dvuókisʹ) — any oxide containing two oxygen atoms in each molecule
  • Scottish Gaelic: dà-ocsaid — any oxide containing two oxygen atoms in each molecule
  • Spanish: dióxido — any oxide containing two oxygen atoms in each molecule
  • Swahili: dioksidi — any oxide containing two oxygen atoms in each molecule
  • Swedish: dioxid — any oxide containing two oxygen atoms in each molecule
Real reading context

dioxide in complete knowledge articles