cytochrome

\si.tɔ.kʁom\

/\si.tɔ.kʁom\/ noun

The verdict

“cytochrome” is uncommon French (frequency #83,755 among 257,141 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#83,755
frequency rank, French
257,141
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Chromoprotéine hémique, intervenant comme transporteur d'électrons dans la chaîne de respiration cellulaire.

Key facts for cytochrome
PropertyValue
Headwordcytochrome
LanguageFrench
Part of speechNoun
IPA\si.tɔ.kʁom\
Letters10
Frequency rank#83,755
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cytochrome” sits in French frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). cytochrome lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cytochrome is uncommon French at frequency #83,755 among 257,141 “C” headwords, classed as anoun, transcribed \si.tɔ.kʁom\. Rarity is why readers land here mid-draft. Gloss: "Chromoprotéine hémique, intervenant comme transporteur d'électrons dans la chaîne de respiration cellulaire.".

Zero misspellings are on record for cytochrome in our index, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.

No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is cytochrome, spelled C-Y-T-O-C-H-R-O-M-E.

Definition

  1. 1
    Chromoprotéine hémique, intervenant comme transporteur d'électrons dans la chaîne de respiration cellulaire.

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 "cytochrome"?
"cytochrome" is spelled C-Y-T-O-C-H-R-O-M-E. The IPA pronunciation is \si.tɔ.kʁom\.
What does "cytochrome" mean?
As a noun, "cytochrome" means: Chromoprotéine hémique, intervenant comme transporteur d'électrons dans la chaîne de respiration cellulaire.
How do you pronounce "cytochrome"?
The IPA (International Phonetic Alphabet) transcription for "cytochrome" is \si.tɔ.kʁom\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cytochrome" come from?
"cytochrome" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

Using “cytochrome”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is C-Y-T-O-C-H-R-O-M-E - every other letter order is a misspelling in standard orthography.
  • Say it as \si.tɔ.kʁom\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more French words and confusable pairs in the same reference. French words

Other uncommon French words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list