botulinum toxin

noun

: a neurotoxin formed by botulinum that causes botulism and that is injected in a purified form for therapeutic and cosmetic purposes (as to treat blepharospasm and reduce wrinkles)

Examples of botulinum toxin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Can Facial Taping Replace Botox or Dysport? Botox and Dysport are injectable medications that contain botulinum toxin. Carrie Madormo, Rn, Health, 4 Mar. 2025 Botulism antitoxin can neutralize botulinum toxin that’s reached your bloodstream, helping to prevent any further nerve damage to your body. Caroline C. Boyle, USA TODAY, 9 Feb. 2025 An injection of botulinum toxin — or Botox — into a sufferer's vocal chords is one of the most common treatments for the disorder. Joe Hernandez, NPR, 29 Jan. 2025 Botox is derived from botulinum toxin type A, a toxin that’s produced from the bacterium Clostridium botulinum. Caroline C. Boyle, USA TODAY, 9 Feb. 2025 See All Example Sentences for botulinum toxin

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of botulinum toxin was in 1923

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Cite this Entry

“Botulinum toxin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/botulinum%20toxin. Accessed 9 Mar. 2025.

Medical Definition

botulinum toxin

noun
variants also botulinus toxin
: a very powerful neurotoxin that causes botulism and is produced by the botulinum bacterium (Clostridium botulinum)
also : botulinum toxin type a

Note: Botulinum toxin acts primarily on the parasympathetic nervous system.

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