biofilm
noun
bio·film
ˌbi-(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
Recent Examples on the Web
These motors are paired with dual active brushes capable of removing biofilm, sediment, and algae from most pools.
—
Rhiannon Frater, USA Today, 5 June 2025
These bowls can harbor bacteria, mold, and biofilm, says Dr. Michael Hyder, DVM and Medical Director at Veterinary Emergency Group in Palo Alto.
—Kathy Barnes, Better Homes & Gardens, 7 Mar. 2025
Studies have shown that microorganisms can become more virulent and form stronger, thicker biofilms in space.
—Jasmine Laws, MSNBC Newsweek, 20 May 2025
Are Bacteria Hiding in Reusable Water Bottles? After discovering biofilm in his water bottle, Carl Behnke, an associate professor at Purdue University, specializing in food safety, and colleagues conducted a study on reusable water bottles around campus.
—Monica Cull, Discover Magazine, 27 Mar. 2025
See All Example Sentences for biofilm
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Rhiannon Frater, USA Today, 5 June 2025
These bowls can harbor bacteria, mold, and biofilm, says Dr. Michael Hyder, DVM and Medical Director at Veterinary Emergency Group in Palo Alto.
—Kathy Barnes, Better Homes & Gardens, 7 Mar. 2025
Studies have shown that microorganisms can become more virulent and form stronger, thicker biofilms in space.
—Jasmine Laws, MSNBC Newsweek, 20 May 2025
Are Bacteria Hiding in Reusable Water Bottles? After discovering biofilm in his water bottle, Carl Behnke, an associate professor at Purdue University, specializing in food safety, and colleagues conducted a study on reusable water bottles around campus.
—Monica Cull, Discover Magazine, 27 Mar. 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 9 Jul. 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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