leucine
\lø.sin\
The verdict
“leucine” is uncommon French (frequency #92,932 among 2,567 “L” headwords), classed as a noun. The kind of spelling people second-guess.
- #92,932
- frequency rank, French
- 2,567
- “L” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Acide aminé dont la chaîne latérale est (-CH₂-CH(CH₃)₂).
Corpus desk
Index FR-leucine · leucine · French
leucine · rank #92,932 · 0 variants · 0 confusables
- FREQ-RARE #92,932
- LEN-LONG 7 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,567
- PHOTO-FINISH leverage
Nearest frequency peer: leverage (+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 « leucine »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- leucine
leucine
7,069 corpus weight
- leverage
leverage
7,068 corpus weight
- librettiste
librettiste
7,067 corpus weight
- libérerait
libérerait
7,066 corpus weight
- lieber
lieber
7,065 corpus weight
- lik
lik
7,064 corpus weight
What this shows Vue de longue queue: où « leucine » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | leucine |
| Language | French |
| Part of speech | Noun |
| IPA | \lø.sin\ |
| Letters | 7 |
| Frequency rank | #92,932 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « leucine » en français
Rare enough to double-check
leucine is uncommon French at frequency #92,932 among 2,567 “L” headwords, classed as anoun, transcribed \lø.sin\. Rarity is why readers land here mid-draft. 2 senses are on record.
leucine doesn't appear in our generated misspelling index, suggesting the orthography follows predictable French patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
This entry carries no recorded etymology, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct French form is leucine, spelled L-E-U-C-I-N-E.
Definition
- 1Acide aminé dont la chaîne latérale est (-CH₂-CH(CH₃)₂).
- 2Principe existant dans le tissu pulmonaire et dans le sang.
Recorded use
Wiktionary exampleThese source excerpts show how leucine appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Il constate la présence d’une molécule de tyrosine (C₉H11AzO₃), et de toute la série homologue des sucres de gélatine, depuis la leucine (C₆H₁₃AzO₂), jusqu’à l’alanine (C₃H₇AzO₂) ; tous à base d’acide gras.
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
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Similar French words by spelling shape
Same letter count and similar misspelling depth for "leucine", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 7 letters (nearest by frequency rank).