biofilm
noun
bio·film
ˌbī-(ˌ)ō-ˈfilm 
: a thin usually resistant layer of microorganisms (such as bacteria) that form on and coat various surfaces
Examples of biofilm in a Sentence
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The membranes also allow biofilms to be transferred between culture media, unlike traditional agar, which destroys patterns when moved.
—
Bojan Stojkovski, Interesting Engineering, 21 Dec. 2025
This problem usually begins in hidden crevices in seals and gaskets, but this nasty biofilm can eventually spread and make your dishwasher unsanitary.
—Brandee Gruener, Southern Living, 10 Dec. 2025
In addition, biofilms impose a physical barrier that restricts what crosses its border, such that saliva can no longer do its job of neutralizing acid as well.
—Jacqueline Abranches, The Conversation, 2 Dec. 2025
Increase their longevity by sanding down the biofilm lurking on the surface.
—Matt Fuchs, Time, 24 Nov. 2025
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Bojan Stojkovski, Interesting Engineering, 21 Dec. 2025
This problem usually begins in hidden crevices in seals and gaskets, but this nasty biofilm can eventually spread and make your dishwasher unsanitary.
—Brandee Gruener, Southern Living, 10 Dec. 2025
In addition, biofilms impose a physical barrier that restricts what crosses its border, such that saliva can no longer do its job of neutralizing acid as well.
—Jacqueline Abranches, The Conversation, 2 Dec. 2025
Increase their longevity by sanding down the biofilm lurking on the surface.
—Matt Fuchs, Time, 24 Nov. 2025
See All Example Sentences for biofilm
Cite this Entry
“Biofilm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biofilm. Accessed 23 Dec. 2025.
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biofilm
noun
bio·film
ˈbī-ō-ˌfilm
: 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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