embolus
Concise Oxford English Dictionary © 2008 Oxford University Press:
embolus /ˈɛmbələs/
▶noun (pl. emboli /-lʌɪ, iː/) a blood clot, air bubble, piece of fatty deposit, or other object obstructing a blood vessel.
– derivatives
embolic adjective.
embolic adjective.
– origin C17 (denoting the plunger of a syringe): from L., lit. ‘piston’, from Gk embolos ‘peg, stopper’.
'embolus' also found in these Oxford entries:

