EXTRAVASATION

Pronunciation (US):

(GB):

 Dictionary entry overview: What does extravasation mean? 

• EXTRAVASATION (noun)
  The noun EXTRAVASATION has 3 senses:

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)

3. the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine

  Familiarity information: EXTRAVASATION used as a noun is uncommon.

 Dictionary entry details 

• EXTRAVASATION (noun)

Sense 1

Meaning:

An extravasated liquid (blood or lymph or urine); the product of extravasation

Classified under:

Nouns denoting substances

Hypernyms ("extravasation" is a kind of...):

liquid (fluid matter having no fixed shape but a fixed volume)

Derivation:

extravasate (force out or cause to escape from a proper vessel or channel)

Sense 2

Meaning:

(of volcanos) pouring out fumes or lava (or a deposit so formed)

Classified under:

Nouns denoting stable states of affairs

Synonyms:

eructation; eruption; extravasation

Hypernyms ("extravasation" is a kind of...):

action; activeness; activity (the state of being active)

Domain category:

vent; volcano (a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt)

Derivation:

extravasate (geology: cause molten material, such as lava, to pour forth)

extravasate (become active and spew forth lava and rocks)

Sense 3

Meaning:

The process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine

Classified under:

Nouns denoting natural processes

Hypernyms ("extravasation" is a kind of...):

biological process; organic process (a process occurring in living organisms)

Hyponyms (each of the following is a kind of "extravasation"):

blood extravasation (the leakage of blood from a vessel into tissues surrounding it; can occur in injuries or burns or allergic reactions)

urocele (extravasation of urine into the scrotal sac)

Derivation:

extravasate (force out or cause to escape from a proper vessel or channel)

 Context examples 

Degradation by heparanase is a key step in extravasation by tumor cells and migrating leukocytes, as well as in angiogenesis, wound healing, and smooth muscle proliferation.

(Heparan Sulfate Proteoglycan, NCI Thesaurus)

Erythrocyte extravasation and hemosiderin deposition are frequently present.

(Kaposi sarcoma, NCI Thesaurus)

A syndrome of cutaneous changes associated with sweat retention and extravasation of sweat at different levels in the skin.

(Miliaria, NLM, Medical Subject Headings)

A hemorrhagic lymphatic lesion characterized by the presence of dilated lymphatic spaces, extravasation of red blood cells, hemosiderin deposition, and fibrosis.

(Hemolymphangioma, NCI Thesaurus)

It is also used to protect cells and tissue during cryopreservation and has been used to treat extravasation damage caused by anthracycline-based chemotherapy.

(Dimethyl sulfoxide, NCI Thesaurus)

Furthermore, alniditan may potentially reduce plasma protein extravasation, which may be another mechanism by which this agent relieves vascular headaches.

(Alniditan, NCI Thesaurus)

It is characterized by the presence of non-hyperchromatic spindle-shaped fibroblasts, multinucleated osteoclast-like giant cells, chronic inflammatory infiltrate, red blood cell extravasation, and high mitotic activity, in a storiform growth pattern.

(Cranial Nodular Fasciitis, NCI Thesaurus)

Almotriptan may also relieve vascular headaches by preventing the release of vasoactive neuropeptides from perivascular trigeminal axons in the dura mater during a migraine, by reducing extravasation of plasma proteins, and by decreasing the release of other mediators of inflammation from the trigeminal nerve.

(Almotriptan, NCI Thesaurus)