Con‐ges″tion (?; 106), n. [L. congestio: cf. F. congestion.] 1. The act of gathering into a heap or mass; accumulation.
The congestion of dead bodies one upon another.
Evelyn.
2. (Med.) Overfullness of the capillary and other blood vessels, etc., in any locality or organ (often producing other morbid symptoms); local hyperæmia, active or passive; as, arterial congestion; venous congestion; congestion of the lungs.