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venous

[vee-nuh s] /ˈvi nəs/
adjective
1.
of, relating to, or of the nature of a vein.
2.
having, characterized by, or composed of veins.
3.
pertaining to the blood in the pulmonary artery, right side of the heart, and most veins, that has become deoxygenated and charged with carbon dioxide during its passage through the body and that in humans is normally dark red.
Origin
1620-1630
1620-30; variant of venose; see -ous
Related forms
venously, adverb
venousness, noun
nonvenous, adjective
nonvenously, adverb
nonvenousness, noun
postvenous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for venous
  • A very small proportion is due to cerebral venous sinus thrombosis.
British Dictionary definitions for venous

venous

/ˈviːnəs/
adjective
1.
(physiol) of or relating to the blood circulating in the veins
2.
of or relating to the veins
Derived Forms
venously, adverb
venousness, noun
Word Origin
C17: see venose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for venous
adj.

1620s, from Latin venosus "full of veins," from vena (see vein).

Online Etymology Dictionary, © 2010 Douglas Harper
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venous in Medicine

venous ve·nous (vē'nəs)
adj.
Of, relating to, or contained in the veins.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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venous in Science
vein
  (vān)   
  1. Any of the blood vessels that carry blood toward the heart from the body's cells, tissues, and organs. Veins are thin-walled and contain valves that prevent the backflow of blood. All veins except the pulmonary vein carry blood with low levels of oxygen.

  2. One of the narrow, usually branching tubes or supporting parts forming the framework of an insect's wing or a leaf. Veins in insect wings carry hemolymph and contain a nerve. Veins in leaves contain vascular tissue, with the xylem usually occurring on the upper side of the vein (bringing in water and nutrients) and the phloem on the lower side (carrying away food). See more at leaf, venation.

  3. A long, narrow deposit of mineral or rock that fills the void formed by a fracture or fault in another rock. The mineralogy of the host rock surrounding the vein is often altered where it is in contact with the vein because of chemical reactions between the two rock types.


venous adjective (vē'nəs)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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