neurotoxin

/ˈn(j)ʊɹoʊtɑksɪn/

//ˈn(j)ʊɹoʊtɑksɪn// noun

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

The verdict

“neurotoxin” is uncommon English (frequency #64,566 among 1,534 “N” headwords), classed as a noun. The kind of spelling people second-guess.

#64,566
frequency rank, English
1,534
“N” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A toxin that specifically acts upon neurons, their synapses, or the nervous system in its entirety.

Corpus desk

Index EN-neurotoxin · neurotoxin · English

neurotoxin · rank #64,566 · 0 variants · 0 confusables

  • FREQ-RARE #64,566
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,534
  • PHOTO-FINISH Nephilim

Nearest frequency peer: Nephilim (-2 rank slots)

Read with this headword: Spelling guide for this pattern

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.

Long-tail ranks near “neurotoxin”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “neurotoxin” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
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)

Long-tail rank of “neurotoxin” in English

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “Nephilim” (#64,564), “Nahum” (#64,562), “nonpublic” (#64,572). Among 1,534 “N” headwords, “neurotoxin” is #64,566. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

neurotoxin is uncommon English at frequency #64,566 among 1,534 “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.

Recorded use

Wiktionary examples

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

  1. There were stretches of days when the lakes were closed because of the algae. It sometimes secreted neurotoxins that could be fatal.
  2. Among those who think of fugu as merely a distant delicacy, knowledge rarely goes beyond the fish’s infamous trait: In the most delicious species, the innards are suffused with the neurotoxin called tetrodotoxin (TTX).

Etymology

From neuro- + toxin.

Synonyms

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 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "neurotoxin", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list