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 In the 1950s and ’60s, scientists purified botulinum toxin, more commonly known as Botox. Nick Kasmik, USA TODAY, 18 May 2024 Brand-name cosmetic Botox, which is used for reducing wrinkles and signs of aging, contains small amounts of botulinum toxin that aren’t harmful when delivered in the right dose. Dani Blum, San Diego Union-Tribune, 14 May 2024 Botox, or botulinum toxin, is used cosmetically to temporarily smooth fine lines on the face. Emily Alpert Reyes, Los Angeles Times, 9 May 2024 Botox is a drug made from botulinum toxin produced by the bacterium Clostridium botulinum. Kristen Fischer, Health, 24 Apr. 2024 That said, in therapeutic cases much higher doses of botulinum toxin are used than in cosmetic patients. Taryn Brooke, Allure, 16 Apr. 2024 But when it is injected carefully, botulinum toxin is generally considered safe. Erika Edwards, NBC News, 16 Apr. 2024 Go to a licensed and trained professional to get an injection of botulinum toxin for cosmetic reasons, and get it in a medical or licensed setting. USA TODAY, 16 Apr. 2024 Botox is an injection of the botulinum toxin, made by the bacterium Clostridium botulinum, which blocks nerve signals and in turn, forces the muscles to relax. Korin Miller, Health, 26 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'botulinum toxin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1923, in the meaning defined above

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

Dictionary Entries Near botulinum toxin

Cite this Entry

“Botulinum toxin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/botulinum%20toxin. Accessed 29 May. 2024.

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.

More from Merriam-Webster on botulinum toxin

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!