extravasation Meaning, Definition & Usage

  1. noun an extravasated liquid (blood or lymph or urine); the product of extravasation
  2. noun (of volcanos) pouring out fumes or lava (or a deposit so formed)
    eructation; eruption.
  3. noun the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine

WordNet

Ex*trav`a*sa"tion noun
Etymology
Cf. F. extravasation.
Definitions
  1. The act of forcing or letting out of its proper vessels or ducts, as a fluid; effusion; as, an extravasation of blood after a rupture of the vessels.

Webster 1913