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.

  • 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.
  • Extravasated.

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


from The American Heritage® Dictionary of the English Language, 4th Edition

[extra– + vas(o)– + –ate.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin extra- +‎ vas ("vessel") +‎ -ate


  • Additionally, the blood-brain barrier in ICH is disrupted and allows molecules, such as glucose, to extravasate from the intravascular to the extracellular space.

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  • Glut, guzzle, slurp, drool, slobber, mumble, snort -

    rank felines, scarcely tame, extravasate,

    vie to possess inflamed raw purple flesh.

    - Peter Reading, The Big Cats, from Diplopic, 1983

    June 29, 2008

  • Well, really, can you blame them? There's nothing like a tasty piece of inflamed raw purple flesh, especially if you're a rank puddy-tat.

    June 30, 2008

  • Citation on innkeeper.

    November 14, 2008

  • there is such a disparity in their Conditions, Colour & Hair, that they can never embody with us, and grow up into orderly Families, to the Peopling of the Land: but still remain in our body Politick as a kind of extravasat Blood.
    Samuel Sewall, "The Selling of Joseph: A Memorial" (1700), in Eve LaPlante, Salem Witch Judge: The Life and Repentance of Samuel Sewall (New York: HarperCollins, 2007)

    December 26, 2015