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
Source: WordNet® 2.0