stroke
:sudden loss of consciousness, sensation, and voluntary motion caused by
rupture or obstruction (as by a clot) of an artery of the brain -- also
called a apoplexy
occlusion
the act of occluding : the state of being occluded : as a : the complete
obstruction of the breath passage in the articulation of a speech sound
occlude
to close up or block off : obstruct; ( example: thrombus occluding a coronary
artery)
clot
mass sticking together, very thick (kinda of like mud or clay)