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 Further studies are needed to evaluate whether biofilm is a more significant concern in plastic pipes. Laodong Guo, The Conversation, 25 June 2024 Bacteria, some of which reproduce multiple times per hour, use these details to determine the longer-term suitability of a location and may even settle together in biofilms, which are more permanent. Microbes other than E. coli probably remember iron exposure, too, O'Toole says. Allison Parshall, Scientific American, 29 Jan. 2024 This indicates that the natural balance or the oral biofilm had been altered–mutans outcompeted the other bacteria species. Laura Baisas, Popular Science, 27 Mar. 2024 Dark spots can indicate the presence of mold, and gray-blackish (or possibly light pink) slimy scum suggests biofilm, a substance secreted by microorganisms. Staff Author, Health, 18 Jan. 2024 See all Example Sentences for biofilm 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'biofilm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 26 Jul. 2024.

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)
Last Updated: - Updated example sentences
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