Extravasation

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Extravasation \Ex*trav`a*sa"tion\, n. [Cf. F. extravasation.]
     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.
        [1913 Webster]
  


     2. (Geol.) The issue of lava and other volcanic products from
        the earth.
        [Webster 1913 Suppl.]

From WordNet (r) 2.0 [wn]:

  extravasation
       n 1: an extravasated liquid (blood or lymph or urine); the
            product of extravasation
       2: (of volcanos) pouring out fumes or lava (or a deposit so
          formed) [syn: {eruption}, {eructation}]
       3: the process of exuding or passing out of a vessel into
          surrounding tissues; said or blood or lymph or urine