Standard Lemma guide

catalyst

noun · 7 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: /ˈkæt.ɪ.lɪst/
  • Australian, Canada, General-American: /ˈkæt.ə.lɪst/
  • Australian, Canada, General-American: [ˈkæɾ.ə.lɪst]
  • Northern-California: Recorded audio is listed in the source snapshot.
  • Queensland Recorded audio is listed in the source snapshot.
  • New-Zealand: /ˈkɛt.ə.ləst/
  • New-Zealand: [ˈkɛɾ.ə.ləst]
  • CMU ARPABET: K AE1 T AH0 L AH0 S T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: K AE1 T AH0 L IH0 S T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A substance that increases the rate of a chemical reaction without being consumed in the process.

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

Something that encourages progress or change.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Examples

  • (obsolete)
  • Economic development and integration are working as a catalyst for peace.

Meaning relationships

Synonyms: stimulus, straw that stirs the drink, solicitor

Antonyms: inhibitor, dampener

3

noun

Meaning 3

An inciting incident that sets the successive conflict into motion.

Definition source: English Wiktionary via Wiktextract

Topics: literature, media, publishing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A catalytic converter.

Definition source: English Wiktionary via Wiktextract

Topics: automotive, transport, vehicles

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

An object that facilitates the casting of a spell (such as a magic wand).

Definition source: English Wiktionary via Wiktextract

Topics: fantasy

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

something that causes an important event to happen

Definition source: Princeton WordNet 3.0

Examples

  • the invasion acted as a catalyst to unite the country

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: causal agent, cause, causal agency

7

noun

Meaning 7

(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: accelerator

Antonyms: anticatalyst

Broader terms: activator

Narrower terms: biocatalyst, enzyme, platinum black

History

Etymology

Etymology tree English catalysis Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Hellenic *-tās Ancient Greek -τής (-tḗs) Ancient Greek -ῐστής (-ĭstḗs)bor. Latin -istader. Old French -istebor. Middle English -ist English -ist English catalyst From catalysis + -ist.

Across languages

Translations

90 source translations are retained for this English entry.

  • Arabic: حَفَّاز (ḥaffāz) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Armenian: կատալիզատոր (katalizator) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Azerbaijani: katalizator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Belarusian: каталіза́тар (katalizátar) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Bulgarian: катализа́тор (katalizátor) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Catalan: catalitzador — substance which increases the rate of a chemical reaction without being consumed in the process
  • Chinese Mandarin: 觸媒 /触媒 (chùméi) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Chinese Mandarin: 催化劑 /催化剂 (cuīhuàjì) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Czech: katalyzátor — substance which increases the rate of a chemical reaction without being consumed in the process
  • Danish: katalysator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Dutch: katalysator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Esperanto: katalizilo — substance which increases the rate of a chemical reaction without being consumed in the process
  • Estonian: katalüsaator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Faroese: kveiki — substance which increases the rate of a chemical reaction without being consumed in the process
  • Finnish: katalyytti — substance which increases the rate of a chemical reaction without being consumed in the process
  • French: catalyseur — substance which increases the rate of a chemical reaction without being consumed in the process
  • Georgian: კატალიზატორი (ḳaṭalizaṭori) — substance which increases the rate of a chemical reaction without being consumed in the process
  • German: Katalysator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Greek: καταλύτης (katalýtis) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Gujarati: ઉદ્દીપક (uddīpak) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Hebrew: זָרָז (zaráz) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Hebrew: קָטָלִיזָטוֹר (katalizatór) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Hindi: उत्प्रेरक (utprerak) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Hungarian: katalizátor — substance which increases the rate of a chemical reaction without being consumed in the process
  • Icelandic: efnahvati — substance which increases the rate of a chemical reaction without being consumed in the process
  • Icelandic: hvati — substance which increases the rate of a chemical reaction without being consumed in the process
  • Indonesian: katalis — substance which increases the rate of a chemical reaction without being consumed in the process
  • Indonesian: katalisator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Italian: catalizzatore — substance which increases the rate of a chemical reaction without being consumed in the process
  • Japanese: 触媒 (shokubai) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Kazakh: өршіткі (örşıtkı) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Korean: 촉매 (chongmae) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Kyrgyz: катализатор (katalizator) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Latvian: katalizators — substance which increases the rate of a chemical reaction without being consumed in the process
  • Malay: mangkin — substance which increases the rate of a chemical reaction without being consumed in the process
  • Malay: katalis — substance which increases the rate of a chemical reaction without being consumed in the process
  • Malay: katalisator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Māori: whākōkī — substance which increases the rate of a chemical reaction without being consumed in the process
  • Norwegian Bokmål: katalysator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Norwegian Nynorsk: katalysator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Persian: کاتالیزگر (kâtâlizgar) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Polish: katalizator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Portuguese: catalisador — substance which increases the rate of a chemical reaction without being consumed in the process
  • Romanian: catalizator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Russian: катализа́тор (katalizátor) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Serbo-Croatian: каталѝза̄тор — substance which increases the rate of a chemical reaction without being consumed in the process
  • Serbo-Croatian: katalìzātor — substance which increases the rate of a chemical reaction without being consumed in the process
  • Slovene: katalizator — substance which increases the rate of a chemical reaction without being consumed in the process
  • Spanish: catalizador — substance which increases the rate of a chemical reaction without being consumed in the process
  • Tagalog: pangganapbilos — substance which increases the rate of a chemical reaction without being consumed in the process
  • Tajik: катализатор (katalizator) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Tatar: катализатор (qatalizator) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Telugu: ఉత్ప్రేరకం (utprērakaṁ) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Thai: ตัวเร่ง (dtuua-rêng) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Turkish: katalizör — substance which increases the rate of a chemical reaction without being consumed in the process
  • Turkish: tezgen — substance which increases the rate of a chemical reaction without being consumed in the process
  • Turkish: ivdirgen — substance which increases the rate of a chemical reaction without being consumed in the process
  • Ukrainian: каталіза́тор (katalizátor) — substance which increases the rate of a chemical reaction without being consumed in the process
  • Vietnamese: chất xúc tác — substance which increases the rate of a chemical reaction without being consumed in the process
  • Belarusian: каталіза́тар (katalizátar) — something that encourages progress or change
  • Bulgarian: катализа́тор (katalizátor) — something that encourages progress or change
  • Catalan: catalitzador — something that encourages progress or change
  • Czech: katalyzátor — something that encourages progress or change
  • Finnish: katalysaattori — something that encourages progress or change
  • Finnish: katalyytti — something that encourages progress or change
  • French: catalyseur — something that encourages progress or change
  • French: ferment — something that encourages progress or change
  • French: démiurge — something that encourages progress or change
  • French: électron libre — something that encourages progress or change
  • French: levain — something that encourages progress or change
  • French: agitateur — something that encourages progress or change
  • French: enzyme — something that encourages progress or change
  • Greek: καταλύτης (katalýtis) — something that encourages progress or change
  • Hungarian: katalizátor — something that encourages progress or change
  • Indonesian: katalisator — something that encourages progress or change
  • Italian: catalizzatore — something that encourages progress or change
  • Norwegian Bokmål: katalysator — something that encourages progress or change
  • Norwegian Nynorsk: katalysator — something that encourages progress or change
  • Polish: katalizator — something that encourages progress or change
  • Portuguese: catalisador — something that encourages progress or change
  • Romanian: catalizator — something that encourages progress or change
  • Russian: катализа́тор (katalizátor) — something that encourages progress or change
  • Spanish: catalizador — something that encourages progress or change
  • Spanish: fermento — something that encourages progress or change
  • Spanish: levadura — something that encourages progress or change
  • Spanish: agitador — something that encourages progress or change
  • Spanish: demiurgo — something that encourages progress or change
  • Spanish: enzima — something that encourages progress or change
  • Thai: ตัวเร่ง (dtuua-rêng) — something that encourages progress or change
  • Ukrainian: каталіза́тор (katalizátor) — something that encourages progress or change
Real reading context

catalyst in complete knowledge articles