thrombosis

The formation, presence, or development of a thrombus.

The coagulation of the blood in a blood-vessel or in the heart during life; the formation or existence of a thrombus. See thrombus .

The obstruction of a blood vessel by a clot formed at the site of obstruction; — distinguished from embolism, which is produced by a clot or foreign body brought from a distance.

The formation of thrombi in the blood vessels of a living organism, causing obstruction of the circulation.

the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel