- The act of gathering into a heap or mass; accumulation.
- An excess of traffic.
- (medicine) Overfullness of the capillary and other blood vessels, etc., in any locality or organ (often producing other morbid symptoms); local hypermic, active or passive; as, arterial congestion; venous congestion; congestion of the lungs.
- (medicine) An excess of mucus or fluid in the respiratory system; congestion of the lungs, or nasal congestion.
From Middle French