biofilm

noun

bio·​film ˌbi-(ˌ)ō-ˈfilm How to pronounce biofilm (audio)
: a thin usually resistant layer of microorganisms (such as bacteria) that form on and coat various surfaces

Examples of biofilm 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.
But bacterial colonies, biofilms, and consortiums of different microorganisms can perform complicated feats of engineering and behavior together, sometimes rivaling what multicellular life can achieve. Veronique Greenwood, WIRED, 9 Feb. 2025 The researchers extracted the oyster blood, then added it to both solutions and biofilms that contained harmful bacteria. Paul Smaglik, Discover Magazine, 21 Jan. 2025 But bacterial colonies, biofilms and consortiums of different microorganisms can perform complicated feats of engineering and behavior together, sometimes rivaling what multicellular life can achieve. Veronique Greenwood, Quanta Magazine, 6 Jan. 2025 These biofilms are communities of microorganisms that attach themselves to surfaces in a sticky, protective matrix. Laura Baisas, Popular Science, 22 Jan. 2025 See all Example Sentences for biofilm 

Word History

First Known Use

1975, in the meaning defined above

Time Traveler
The first known use of biofilm was in 1975

Dictionary Entries Near biofilm

Cite this Entry

“Biofilm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biofilm. Accessed 19 Feb. 2025.

Medical Definition

biofilm

noun
bio·​film ˈbī-ō-ˌfilm How to pronounce biofilm (audio)
: a thin usually resistant layer of microorganisms (as bacteria) that form on and coat various surfaces (as of catheters or water pipes)
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