'Thrombosis' definitions:

Definition of 'thrombosis'

From: WordNet
noun
The formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel

Definition of 'Thrombosis'

From: GCIDE
  • Thrombosis \Throm*bo"sis\, n. [NL. See Thrombus.] (Med.) 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. -- {Throm*bot"ic}, a. [1913 Webster]

Synonyms of 'thrombosis'

From: Moby Thesaurus