catalyser

\ka.ta.li.ze\

/\ka.ta.li.ze\/ verb

The verdict

“catalyser” is uncommon French (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency French
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Modifier la vitesse d’une réaction chimique à l’aide d’un catalyseur.

Corpus desk

Index FR-catalyser · catalyser · French

catalyser · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for catalyser
PropertyValue
Headwordcatalyser
LanguageFrench
Part of speechVerb
IPA\ka.ta.li.ze\
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « catalyser » en français

catalyserreste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

catalyser is uncommon French outside the top frequency list, classed as averb, transcribed \ka.ta.li.ze\. Rarity is why readers land here mid-draft. 2 senses are on record.

The misspelling generator found no plausible variants for catalyser, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Wiktionary doesn't record an etymology for this headword, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is catalyser, spelled C-A-T-A-L-Y-S-E-R.

Definition

  1. 1
    Modifier la vitesse d’une réaction chimique à l’aide d’un catalyseur.
  2. 2
    Déclencher, susciter une réaction, une émotion.

Recorded use

Wiktionary examples

These source excerpts show how catalyser appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Le fer (Fe) est l’un des composants essentiels du processus cellulaire et physiologique. Cependant, sa faible solubilité et sa capacité à catalyser la formation d’oxydants toxiques sont des problèmes majeurs pour son utilisation.
  2. Et c’est vrai que je catalysais sa colère, j’augmentais son énervement si je tremblais quand il élevait la voix.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "catalyser"?
"catalyser" is spelled C-A-T-A-L-Y-S-E-R. The IPA pronunciation is \ka.ta.li.ze\.
What does "catalyser" mean?
As a verb, "catalyser" means: Modifier la vitesse d’une réaction chimique à l’aide d’un catalyseur.
How do you pronounce "catalyser"?
The IPA (International Phonetic Alphabet) transcription for "catalyser" is \ka.ta.li.ze\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "catalyser" come from?
"catalyser" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list