a sudden occurrence of an uncontrollable condition

tending to occlude

a closure of the larynx that blocks the passage of air to the lungs

occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle)

occlusion of a blood vessel by an embolus that has broken away from a thrombus

the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel

occlusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot