Ex*trav`a*sa"tion (?), n. [Cf. F. extravasation.]
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
Ex*trav`a*sa"tion, n. (Geol.)
The issue of lava and other volcanic products from the earth.
© Webster 1913