An obstruction causing an embolism: a blood clot, air bubble or other matter carried by the bloodstream and causing a blockage or occlusion of a blood vessel.
The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.
The act of obstructing, or state of being obstructed.
Something which obstructs or impedes, either intentionally or unintentionally
The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death.