olfaction

\ɔl.fak.sjɔ̃\

/\ɔl.fak.sjɔ̃\/ noun

The verdict

“olfaction” is uncommon French (frequency #87,909 among 1,642 “O” headwords), classed as a noun. The kind of spelling people second-guess.

#87,909
frequency rank, French
1,642
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Action de sentir, odorat, flair. Flair, capacité à détecter les molécules aromatiques en suspension dans l'air.

Corpus desk

Index FR-olfaction · olfaction · French

olfaction · rank #87,909 · 0 variants · 0 confusables

  • FREQ-RARE #87,909
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,642
  • PHOTO-FINISH ogivale

Nearest frequency peer: ogivale (-1 rank slots)

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.

Rangs de longue queue près de « olfaction »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « olfaction » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for olfaction
PropertyValue
Headwordolfaction
LanguageFrench
Part of speechNoun
IPA\ɔl.fak.sjɔ̃\
Letters9
Frequency rank#87,909
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « olfaction » en français

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).olfactiontombe dans cette queue de rareté:

#1#100#1K#10K#100K
← used constantlyrarely used →

L'axe est logarithmique: chaque tic marque environ dix fois moins de fréquence. Voisins rares de la même bande: « ogivale » (#87,908), « omniscience » (#87,910), « odds » (#87,907). Parmi 1,642 lemmes en « O », « olfaction » est au #87,909. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

olfaction is uncommon French at frequency #87,909 among 1,642 “O” headwords, classed as anoun, transcribed \ɔl.fak.sjɔ̃\. Rarity is why readers land here mid-draft. Gloss: "Action de sentir, odorat, flair. Flair, capacité à détecter les molécules aromatiques en suspension dans l'air.".

olfaction doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is olfaction, spelled O-L-F-A-C-T-I-O-N.

Definition

  1. 1
    Action de sentir, odorat, flair. Flair, capacité à détecter les molécules aromatiques en suspension dans l'air.

Recorded use

Wiktionary examples

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

  1. Le chien a une olfaction très développée.
  2. L’olfaction se démarque des autres systèmes sensoriels par les caractéristiques uniques de son circuit neuro-anatomique.

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); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "olfaction"?
"olfaction" is spelled O-L-F-A-C-T-I-O-N. The IPA pronunciation is \ɔl.fak.sjɔ̃\.
What does "olfaction" mean?
As a noun, "olfaction" means: Action de sentir, odorat, flair. Flair, capacité à détecter les molécules aromatiques en suspension dans l'air.
How do you pronounce "olfaction"?
The IPA (International Phonetic Alphabet) transcription for "olfaction" is \ɔl.fak.sjɔ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "olfaction" come from?
"olfaction" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "olfaction", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 9 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list