Blood clots:Blood that has been converted from a liquid to a solid state. Also called a thrombus.
The process by which ablood clotforms is termed coagulation. A blood clot, or thrombus, is stationary within a vessel or the heart. If it moves from that location through the bloodstream, it is referred to as anembolus.
Picture of a blood clot is formed
![红细胞和platel的照片ets form a blood clot](https://images.medicinenet.com/images/illustrations/blood_clot.jpg?resize=650px:*&output-quality=75)