salmonella

noun

sal·​mo·​nel·​la ˌsal-mə-ˈne-lə How to pronounce salmonella (audio)
plural salmonellae ˌsal-mə-ˈne-(ˌ)lē How to pronounce salmonella (audio)
-ˌlī
or salmonellas or salmonella
: any of a genus (Salmonella) of usually motile enterobacteria that are pathogenic for humans and other warm-blooded animals and cause food poisoning, gastrointestinal inflammation, typhoid fever, or septicemia

Examples of salmonella in a Sentence

Recent Examples on the Web
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Research shows tegus, like most reptiles, carry salmonella. Christopher Harris, CBS News, 4 June 2026 Although not particularly aggressive or dangerous, tegus may carry exotic parasites as well as harmful bacteria including salmonella. Andrew Paul, Popular Science, 3 June 2026 Symptoms of salmonella poisoning Symptoms of salmonella poisoning usually start six hours to six days after ingesting the bacteria. Mary Walrath-Holdridge, USA Today, 2 June 2026 Also, clean and sanitize all surfaces that food with salmonella might have touched. David J. Neal, Miami Herald, 31 May 2026 See All Example Sentences for salmonella

Word History

Etymology

New Latin, from Daniel E. Salmon †1914 American veterinarian

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of salmonella was in 1913

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Cite this Entry

“Salmonella.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/salmonella. Accessed 13 Jun. 2026.

Kids Definition

salmonella

noun
sal·​mo·​nel·​la ˌsal-mə-ˈnel-ə How to pronounce salmonella (audio)
plural salmonellae -ˈnel-ē How to pronounce salmonella (audio)
-ˌī
or salmonellas or salmonella
: any of a genus of rod-shaped bacteria that cause various illnesses (as food poisoning) in human beings and other warm-blooded animals

Medical Definition

salmonella

noun
sal·​mo·​nel·​la ˌsal-mə-ˈnel-ə How to pronounce salmonella (audio)
1
capitalized : a genus of aerobic gram-negative rod-shaped nonspore-forming usually motile bacteria of the family Enterobacteriaceae that grow well on artificial media and form acid and gas on many carbohydrates but not on lactose, sucrose, or salicin, that are pathogenic for humans and other warm-blooded animals, and that cause food poisoning, acute gastrointestinal inflammation, typhoid fever, and septicemia
2
plural salmonellae -ˈnel-ē How to pronounce salmonella (audio) or salmonellas or salmonella : any bacterium of the genus Salmonella

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