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Webster's Dictionary (1865)

Con-gĕs'tion, n.

noun

(kon-jĕst'yun), n. [Lat. congestio, Fr. congestion, It. congestione.]

  1. The act of gathering into a heap or mass; accumulation. [Obs.] “The congestion of dead bodies one upon another for want of earth.” Evelyn.
  2. (Med.) An unnatural accumulation of blood in any part of the body, or any subordinate system of parts. Dunglison.