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(plak)
![](https://webarchive.library.unt.edu/eot2008/20081025225516im_/http://www.nci.nih.gov/images/spacer.gif)
| In medicine, a small, abnormal patch of tissue on a body part or an organ. Plaques may also be a build-up of substances from a fluid, such as cholesterol in the blood vessels. |
Previous Definitions: | placebo-controlled, placenta, placental blood transplantation, Plan B, plant sterol | Next Definitions: | plaque radiotherapy, plasma, plasma cell, plasma cell myeloma, plasma cell tumor |
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