Standard Lemma guide

ozone

noun · verb · 4 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: /ˈəʊzəʊn/
  • Received-Pronunciation, obsolete: /ə(ʊ)ˈzəʊn/
  • General-American: /ˈoʊzoʊn/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: OW1 Z OW2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An allotrope of oxygen (symbol O3) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxygen by electrical discharge.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: greenhouse gas

2

noun

Meaning 2

Fresh air, especially that breathed at the seaside and smelling of seaweed.

Definition source: English Wiktionary via Wiktextract

Usage: UK, informal, uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To treat with ozone.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: gas

History

Etymology

From German Ozon, coined 1840 by Christian Friedrich Schönbein, from Ancient Greek ὄζον (ózon), neuter participle of ὄζω (ózō, “I smell”), in reference to its pungent odour. The “fresh air” sense is from an erroneous former belief that seaweed contains and releases ozone.

Across languages

Translations

78 source translations are retained for this English entry.

  • Afrikaans: osoon — O3
  • Albanian: ozoni — O3
  • Arabic: أُوزُون (ʔūzūn) — O3
  • Arabic: أُوزُون (ʔozon) — O3
  • Armenian: օզոն (ōzon) — O3
  • Azerbaijani: ozon — O3
  • Belarusian: азо́н (azón) — O3
  • Bengali: ওজন (ōjon) — O3
  • Bengali: ওজোন (ōjōn) — O3
  • Bulgarian: озо́н (ozón) — O3
  • Burmese: အိုဇုန်း (uijun:) — O3
  • Catalan: ozó — O3
  • Chinese Cantonese: 臭氧 (cau3 joeng5) — O3
  • Chinese: 臭氧 (chhàu-iâng) — O3
  • Chinese Mandarin: 臭氧 (chòuyǎng) — O3
  • Czech: ozón — O3
  • Czech: ozon — O3
  • Danish: ozon — O3
  • Dutch: ozon — O3
  • Esperanto: ozono — O3
  • Estonian: osoon — O3
  • Finnish: otsoni — O3
  • French: ozone — O3
  • Friulian: ozon — O3
  • Georgian: ოზონი (ozoni) — O3
  • German: Ozon — O3
  • Greek: όζον (ózon) — O3
  • Gujarati: ત્રિપ્રાણવાયુ (triprāṇvāyu) — O3
  • Hebrew: אוזון (ozon) — O3
  • Hindi: ओज़ोन (ozon) — O3
  • Hungarian: ózon — O3
  • Icelandic: óson — O3
  • Ido: ozono — O3
  • Indonesian: ozon — O3
  • Inuktitut: ᐊᓂᕐᓂᖃᕐᓇᖅᑑᑉ ᖁᑦᓯᓐᓂᖓ (anirniqarnaqtoop qotsinninga) — O3
  • Irish: ózón — O3
  • Italian: ozono — O3
  • Japanese: オゾン (ozon) — O3
  • Kazakh: озон (ozon) — O3
  • Khmer: អូហ្សូន (ʼouzoun) — O3
  • Khmer: អូសូន (ʼousoun) — O3
  • Korean: 오존 (ojon) — O3
  • Lao: ໂອໂຊນ (ʼō sōn) — O3
  • Latvian: ozons — O3
  • Lithuanian: ozonas — O3
  • Macedonian: озон (ozon) — O3
  • Malay: ozon — O3
  • Māori: hāora-toru — O3
  • Norwegian Bokmål: ozon — O3
  • Norwegian Nynorsk: ozon — O3
  • Persian: ازن (ozon) — O3
  • Piedmontese: oson — O3
  • Polish: ozon — O3
  • Portuguese: ozônio — O3
  • Portuguese: ozono — O3
  • Romanian: ozon — O3
  • Russian: озо́н (ozón) — O3
  • Scottish Gaelic: òson — O3
  • Serbo-Croatian: озон — O3
  • Serbo-Croatian: ozon — O3
  • Slovak: ozón — O3
  • Slovene: ozon — O3
  • Spanish: ozono — O3
  • Swahili: ozoni — O3
  • Swedish: ozon — O3
  • Tamil: சாரலியம் (cāraliyam) — O3
  • Tamil: ஓசோன் (ōcōṉ) — O3
  • Telugu: ఓజోన్ (ōjōn) — O3
  • Thai: โอโซน (oh sohn) — O3
  • Turkish: ozon — O3
  • Ukrainian: озо́н (ozón) — O3
  • Vietnamese: ozon — O3
  • Volapük: lozon — O3
  • Welsh: osôn — O3
  • Yoruba: òsóònù — O3
  • Greek: καθαρός αέρας (katharós aéras) — fresh air
  • Russian: озо́н (ozón) — fresh air
  • Russian: све́жий во́здух (svéžij vózdux) — fresh air