acetylcholine
/əˌsitəlˈkoʊlin/
Detailed reference entry for the English word "acetylcholine", 13-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "acetylcholine" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "acetylcholine" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
The verdict
“acetylcholine” is a moderately-common English word, ranked #46,887 in English word frequency and used as a noun.
- #46,887
- frequency rank, English
- 13
- letters
- 20
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃.
Compare similar words
See how acetylcholine compares against similar English words.
Browse all word comparisons →| Property | Value |
|---|---|
| Headword | acetylcholine |
| Language | English |
| Part of speech | Noun |
| IPA | /əˌsitəlˈkoʊlin/ |
| Letters | 13 |
| Frequency rank | #46,887 |
| Misspellings tracked | 20 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “acetylcholine” sits in English frequency
Spelling & Dictionary Insight
The English entry for acetylcholine is 13 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /əˌsitəlˈkoʊlin/. Corpus data places it at rank #46,887 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃.".
Our generated misspelling index lists 20 likely wrong-spelling variants for acetylcholine, with forms such as "accetylcholine", "acetlycholine", and "acettylcholine". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. 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.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is acetylcholine, spelled A-C-E-T-Y-L-C-H-O-L-I-N-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃.
This word in other languages
Common misspellings
Also misspelled as: accetylcholine,acetlycholine,acettylcholine,acetyclholine,acetylccholine,acetylchholine,acetylchloine,acetylchoilne,acetylcholien,acetylcholinne,acetylcholline,acetylcholnie,acetylcohline,acetylhcoline,acetyllcholine,acetyylcholine,aceytlcholine,acteylcholine,aectylcholine,caetylcholine
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of acetylcholine - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 English corpus, MIT). See the methodology for how each field is sourced and updated.
Cite this page
Free to reuse with attribution (CC BY-SA). Copy the citation:
PlainSpell, “acetylcholine, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/acetylcholine
Frequently Asked Questions
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Using “acetylcholine”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-C-E-T-Y-L-C-H-O-L-I-N-E - every other letter order is a misspelling in standard orthography.
- Say it as /əˌsitəlˈkoʊlin/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Nearby English words
Other entries that begin with the letter A in our English index: