Phrase guide

reducing agent

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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No pronunciation record was provided for this word.

1

noun

Meaning 1

Any substance that reduces, or donates electrons to, another; in so doing, it becomes oxidized.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: reducer, reductant

Antonyms: none provided

2

noun

Meaning 2

a substance capable of bringing about the reduction of another substance as it itself is oxidized; used in photography to lessen the density of a negative or print by oxidizing some of the loose silver

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: reducer, reductant

Antonyms: none provided

Broader terms: chemical agent

Narrower terms: hydrazine

History

Etymology

No etymology was provided for this word.

Across languages

Translations

15 source translations are retained for this English entry.

  • Bulgarian: редуктор (reduktor) — any substance that reduces, or donates electrons to, another
  • Chinese Mandarin: 還原劑 /还原剂 (huányuánjì) — any substance that reduces, or donates electrons to, another
  • Finnish: pelkistin — any substance that reduces, or donates electrons to, another
  • French: réducteur — any substance that reduces, or donates electrons to, another
  • German: Reduktionsmittel — any substance that reduces, or donates electrons to, another
  • Greek: αναγωγικό μέσο (anagogikó méso) — any substance that reduces, or donates electrons to, another
  • Hebrew: חומר מחזר — any substance that reduces, or donates electrons to, another
  • Hungarian: redukálószer — any substance that reduces, or donates electrons to, another
  • Indonesian: bahan pereduksi — any substance that reduces, or donates electrons to, another
  • Italian: riducente — any substance that reduces, or donates electrons to, another
  • Japanese: 還元剤 (kangen-zai) — any substance that reduces, or donates electrons to, another
  • Malay: agen penurunan — any substance that reduces, or donates electrons to, another
  • Polish: reduktor — any substance that reduces, or donates electrons to, another
  • Spanish: reductor — any substance that reduces, or donates electrons to, another
  • Turkish: indirge madde — any substance that reduces, or donates electrons to, another