NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,938 terms related to cancer and medicine.

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biofilm
(BY-oh-FILM)
A layer of bacteria or other microbes that grows on and sticks to the surface of a structure. A biofilm may cover natural surfaces, such as teeth. They may also grow in or on medical devices, such as catheters or artificial joints. Bacteria growing as a biofilm are hard to treat with antibiotics.