Ex*trav`a*sa"tion , n.
(Geol.) The issue
of lava and
other volcanic products from the earth.
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.
Hear it pronounced