NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,158 terms related to cancer and medicine.
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- blood clot
- listen (blud klot)
- A mass of blood that forms when blood platelets, proteins, and cells stick together. When a blood clot is attached to the wall of a blood vessel, it is called a thrombus. When it moves through the bloodstream and blocks the flow of blood in another part of the body, it is called an embolus.