Standard Lemma guide

oxidizer

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

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  • CMU ARPABET: AA1 K S IH0 D AY2 Z ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An oxidizing agent, especially one used to oxidize the fuel of a rocket or a fuel cell.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a substance that oxidizes another substance

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: oxidant, oxidiser, oxidizing agent

Antonyms: none provided

Broader terms: chemical agent

Narrower terms: hydrogen peroxide, peroxide

History

Etymology

Etymology tree 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 Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize English oxidize Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English oxidizer From oxidize + -er.

Across languages

Translations

9 source translations are retained for this English entry.

  • Danish: oxidationsmiddel — oxidizing agent
  • Finnish: hapetin — oxidizing agent
  • French: comburant — oxidizing agent
  • German: Oxidationsmittel — oxidizing agent
  • Interlingua: comburente — oxidizing agent
  • Italian: comburente — oxidizing agent
  • Portuguese: comburente — oxidizing agent
  • Spanish: comburente — oxidizing agent
  • Welsh: ocsidydd — oxidizing agent