neurotoxin

/ˈn(j)ʊɹoʊtɑksɪn/

//ˈn(j)ʊɹoʊtɑksɪn// noun

By · According to Wiktionary data (CC BY-SA) ·

"neurotoxin" is a 10-letter English headword indexed on PlainSpell.

The verdict

“neurotoxin” is uncommon English (frequency #64,566 among 24,391 “N” headwords), classed as a noun. The kind of spelling people second-guess.

#64,566
frequency rank, English
24,391
“N” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.

Key facts for neurotoxin
PropertyValue
Headwordneurotoxin
LanguageEnglish
Part of speechNoun
IPA/ˈn(j)ʊɹoʊtɑksɪn/
Letters10
Frequency rank#64,566
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “neurotoxin” sits in English 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). neurotoxin 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

neurotoxin is uncommon English at frequency #64,566 among 24,391 “N” headwords, classed as anoun, transcribed /ˈn(j)ʊɹoʊtɑksɪn/. Rarity is why readers land here mid-draft. Gloss: "A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.".

neurotoxin doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From neuro- + toxin. The correct English form is neurotoxin, spelled N-E-U-R-O-T-O-X-I-N.

Definition

  1. 1
    A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.

Etymology

From neuro- + toxin.

Synonyms

neurolysin

This word in other languages

neurotoxine(Français)Nervengift(Deutsch)

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.

Frequently Asked Questions

How do you spell "neurotoxin"?
"neurotoxin" is spelled N-E-U-R-O-T-O-X-I-N. The IPA pronunciation is /ˈn(j)ʊɹoʊtɑksɪn/.
What does "neurotoxin" mean?
As a noun, "neurotoxin" means: A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.
How do you pronounce "neurotoxin"?
The IPA (International Phonetic Alphabet) transcription for "neurotoxin" is /ˈn(j)ʊɹoʊtɑksɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "neurotoxin"?
From neuro- + toxin. See the full etymology section above for more details.
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 “neurotoxin”

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

  • The one correct English spelling is N-E-U-R-O-T-O-X-I-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈn(j)ʊɹoʊtɑksɪn/ (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

Other uncommon English 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