'Thrombi' definitions:

Definition of 'Thrombi'

From: GCIDE

Thrombus \Throm"bus\, n.; pl. Thrombi. [NL., fr. Gr. ? a lump, a clot of blood.] (Med.) (a) A clot of blood formed of a passage of a vessel and remaining at the site of coagulation. (b) A tumor produced by the escape of blood into the subcutaneous cellular tissue. [1913 Webster]