thrombus

English Thesaurus

1. a blood clot formed within a blood vessel and remaining attached to its place of origin (noun.state)

hypernym	:	clot, coagulum,
definition	:	a lump of material formed from the content of a liquid (noun.body)

part meronym	:	thrombosis,
definition	:	the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel (noun.state)