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neurotoxin

American  
[noor-oh-tok-sin, nyoor-, noor-oh-tok-, nyoor-] / ˈnʊər oʊˌtɒk sɪn, ˈnjʊər-, ˌnʊər oʊˈtɒk-, ˌnjʊər- /

noun

  1. a neurotoxic substance, as rattlesnake venom or the poison of a black widow spider.


neurotoxin British  
/ ˌnjʊərəʊˈtɒksɪn /

noun

  1. any of several natural substances that interfere with the electrical activities of nerves, thus preventing them from functioning

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of neurotoxin

First recorded in 1900–05; neuro- + toxin


Vocabulary lists containing neurotoxin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Women, on the other hand, spent an average of $455 per visit for neurotoxin treatments—products that temporarily reduce the appearance of fine lines, including Botox and competitors like Daxxify and Xeomin.

From The Wall Street Journal ● Oct. 16, 2026

“In animal studies, acrylamide has been shown to be a neurotoxin that can also cause cancer,” the report explains.

From Slate ● Sep. 14, 2026

Lead is a neurotoxin, and exposure to even low levels can damage children’s brains and affect their development.

From Los Angeles Times ● May 22, 2026

"A neurotoxin, a radioactive substance, or a toxic substance is much more frightening than an explosive or being shot to death."

From Barron's ● Feb. 16, 2026

Some difficulty in breathing can occur, especially if large amounts of neurotoxin are present in the venom.

From Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) by Ray D. Burkett

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