tryptophane

\tʁip.to.fan\

/\tʁip.to.fan\/ noun

The verdict

“tryptophane” is uncommon French (frequency #89,270 among 3,703 “T” headwords), classed as a noun. The kind of spelling people second-guess.

#89,270
frequency rank, French
3,703
“T” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Acide aminé essentiel contenant un hétérocycle indole.

Corpus desk

Index FR-tryptophane · tryptophane · French

tryptophane · rank #89,270 · 0 variants · 0 confusables

  • FREQ-RARE #89,270
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,703
  • PHOTO-FINISH TTL

Nearest frequency peer: TTL (+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 « tryptophane »

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 « tryptophane » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for tryptophane
PropertyValue
Headwordtryptophane
LanguageFrench
Part of speechNoun
IPA\tʁip.to.fan\
Letters11
Frequency rank#89,270
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « tryptophane » en français

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

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

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Voisins rares de la même bande: « TTL » (#89,271), « tromperait » (#89,268), « tumoral » (#89,272). Parmi 3,703 lemmes en « T », « tryptophane » est au #89,270. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

tryptophane is uncommon French at frequency #89,270 among 3,703 “T” headwords, classed as anoun, transcribed \tʁip.to.fan\. Rarity is why readers land here mid-draft. Gloss: "Acide aminé essentiel contenant un hétérocycle indole.".

We couldn't generate a plausible misspelling set for tryptophane, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No documented word history exists for this headword, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is tryptophane, spelled T-R-Y-P-T-O-P-H-A-N-E.

Definition

  1. 1
    Acide aminé essentiel contenant un hétérocycle indole.

Recorded use

Wiktionary examples

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

  1. Les protéines, en particulier trois des huit acides aminés essentiels (la lysine, la méthionine et le tryptophane), sont contenues en belle quantité dans le jaune d’œuf et les poissons gras (sardine, anchois, hareng…), en priorité, puis les volailles sans leur peau, les viandes maigres, les céréales complètes et les légumes secs, ainsi que les yaourts nat…
  2. Parmi elles, certaines [bactéries] participent à la synthèse d’acides aminés essentiels, tels le tryptophane et la phénylalanine, mais aucune voie métabolique n’est complète.

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 "tryptophane"?
"tryptophane" is spelled T-R-Y-P-T-O-P-H-A-N-E. The IPA pronunciation is \tʁip.to.fan\.
What does "tryptophane" mean?
As a noun, "tryptophane" means: Acide aminé essentiel contenant un hétérocycle indole.
How do you pronounce "tryptophane"?
The IPA (International Phonetic Alphabet) transcription for "tryptophane" is \tʁip.to.fan\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "tryptophane" come from?
"tryptophane" 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 "tryptophane", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 11 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list