Clot

Clot - gelatinous elastic education that arise during the life in the blood, shed abroad in the body cavity or out, or as a result of post-mortem blood clotting in the heart and large vessels. The clot is composed of fibrin and erythrocytes, its colour from dark-red to yellow depending on the number of red blood cells. A large number of clots in the body indicates the long agony.
Unlike clots, blood clots and clots of stiff, dry, easily crumble, corrugated surface; clots brazed with the vessel wall.