'Congestion' definitions:

Definition of 'congestion'

From: WordNet
noun
Excessive accumulation of blood or other fluid in a body part
noun
Excessive crowding; "traffic congestion" [syn: congestion, over-crowding]

Definition of 'Congestion'

From: GCIDE
  • Congestion \Con*ges"tion\ (?; 106), n. [L. congestio: cf. F. congestion.]
  • 1. The act of gathering into a heap or mass; accumulation. [Obs.] [1913 Webster]
  • The congestion of dead bodies one upon another. --Evelyn. [1913 Webster]
  • 2. (Med.) Overfullness of the capillary and other blood vessels, etc., in any locality or organ (often producing other morbid symptoms); local hyper[ae]mia, active or passive; as, arterial congestion; venous congestion; congestion of the lungs. [1913 Webster]