botulinum

noun

bot·​u·​li·​num ˌbä-chə-ˈlī-nəm How to pronounce botulinum (audio)
variants or less commonly botulinus
: a spore-forming bacterium (Clostridium botulinum) that secretes botulinum toxin
botulinal adjective

Examples of botulinum 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.
The toxin produced by C. botulinum bacteria can also cause a range of symptoms including muscle weakness, blurry vision, drooping eyelids, difficulty speaking, paralysis and trouble breathing, which can lead to death. Neha Mukherjee, CNN, 11 Feb. 2025 Botulism is often caused by ingesting foods contaminated with botulinum toxin (or in the case of infants, by ingesting foods contaminated with Clostridium botulinum spores), per the CDC. Caroline C. Boyle, USA TODAY, 9 Feb. 2025 Clostridium botulinum is a bacterium that produces botulinum toxin, the neurotoxin that causes botulism, says Dr. Daniel Kuritzkes, Chief of the Division of Infectious Diseases at Brigham and Women's Hospital. Caroline C. Boyle, USA TODAY, 7 Feb. 2025 Products like dips can be particularly risky for botulinum toxin contamination if they are not processed properly, as Clostridium botulinum thrives in low-acid, low-oxygen environments. Gordon G. Chang, Newsweek, 24 Jan. 2025 See All Example Sentences for botulinum

Word History

Etymology

New Latin, from Latin botulus sausage

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of botulinum was in 1916

Browse Nearby Entries

Cite this Entry

“Botulinum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/botulinum. Accessed 3 Mar. 2025.

Medical Definition

botulinum

noun
bot·​u·​li·​num ˌbäch-ə-ˈlī-nəm How to pronounce botulinum (audio)
variants also botulinus
: a spore-forming bacterium of the genus Clostridium (C. botulinum) that produces botulinum toxin
botulinal adjective
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!