bacterial

adjective

bac·​te·​ri·​al bak-ˈtir-ē-əl How to pronounce bacterial (audio)
: of, relating to, or caused by bacteria
bacterial infection
bacterially adverb

Examples of bacterial 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.
Next-gen leather materials made from mycelium, bacterial cellulose or grain waste like Mycoworks’ Reishi or Uncaged Innovations’ protein leather, for instance, generate a fraction of the carbon emissions of cowhide leather or polyurethane. Jasmin Malik Chua, Sourcing Journal, 19 Sep. 2025 The results could then be used to fight bacterial infections in, for example, farming or even gene therapy. Alex Harrington, MSNBC Newsweek, 17 Sep. 2025 We were also asked to include things like budesonide [a treatment for Crohn's disease] and clarithromycin [an antibiotic that treats bacterial infections] in our toolkits for physicians. Beth Mole, ArsTechnica, 17 Sep. 2025 In 2022, Florida weathered a bad outbreak of meningococcal disease, a type of fast-moving bacterial infection that can become fatal after entering the bloodstream or the lining of the brain and spinal cord. Jamie Ducharme, The Atlantic, 17 Sep. 2025 See All Example Sentences for bacterial

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of bacterial was in 1869

Browse Nearby Words

Cite this Entry

“Bacterial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bacterial. Accessed 24 Sep. 2025.

Kids Definition

bacterial

adjective
bac·​te·​ri·​al bak-ˈtir-ē-əl How to pronounce bacterial (audio)
: of, relating to, or caused by bacteria

Medical Definition

bacterial

adjective
bac·​te·​ri·​al bak-ˈtir-ē-əl How to pronounce bacterial (audio)
: of, relating to, or caused by bacteria
a bacterial chromosome
bacterial infection
bacterial endocarditis
bacterially adverb

More from Merriam-Webster on bacterial

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