extravasate

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb Medicine To force the flow of (blood or lymph) from a vessel out into surrounding tissue.
• intransitive verb Geology To cause (molten lava) to pour forth from a volcanic vent.
• intransitive verb Medicine To exude from a vessel into surrounding tissue.
• intransitive verb Geology To erupt.

from The Century Dictionary.

• Extravasated.
• In pathology, to become infiltrated or effused; escape, as blood, lymph, or serum, from its proper vessels into surrounding tissues.
• noun The fluid which has been extra vasated.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb (Physiol.) To pass by infiltration or effusion from the normal channel, such as a blood vessel or a lymphatic, into the surrounding tissue; -- said of blood, lymph, etc.
• transitive verb To force or let out of the proper vessels or arteries, as blood.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Outside of a vessel.
• noun That which is outside a vessel (especially blood or other bodily fluids)
• verb To flow (or be forced) from a vessel

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb geology: cause molten material, such as lava, to pour forth
• verb force out or cause to escape from a proper vessel or channel
• verb become active and spew forth lava and rocks