An adhesion, or gluing together.
The agglutination of an antigen, antibody and complement by the addition of a serum agent.
The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.
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.