D defs.my
Entry 2 senses Webster, 1913

Congestion

/kən-jĕs'-chən/ · Con·ges·tion · IPA /kənˈd͡ʒɛs.t͡ʃən/
01 n. The act of gathering into a heap or mass; accumulation.
  1. 1.
    The act of gathering into a heap or mass; accumulation.[Obs.]
    “The congestion of dead bodies one upon another.” Evelyn.
  2. 2.
    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.(Med.)