Definition of: embolus

(em′bə·ləs) noun plural ·li (-lī)
1. Anything inserted or shaped for insertion, as a wedge, sucker of a pump, plunger, or piston.
2. Pathol. Any solid body (as a piece of fibrin or a blood clot) that forms an obstruction in a blood vessel. [<L <Gk. embolos peg <en-in + ballein throw]