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[in-truh-vee-nuh s] /ˌɪn trəˈvi nəs/
within a vein.
of, pertaining to, employed in, or administered by injection into a vein:
an intravenous solution.
an intravenous injection.
intravenous feeding.
Abbreviation: IV.
Origin of intravenous
1840-50; intra- + venous Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for intravenous
  • intravenous feedings may be needed in life-threatening situations.
  • After he was strapped in place and the intravenous lines inserted, the witness-room curtains were opened.
  • Soon cases were also detected in intravenous drug users and recipients of blood transfusions.
  • For example, children with cystic fibrosis must be treated with intravenous antibiotics.
  • Respiratory therapists do not usually give injections or intravenous drugs.
  • Early start of intravenous fluid therapy seems being of help.
  • It also needs to run continuously through an intravenous tube.
  • Persons who use intravenous drugs should seek treatment for addiction.
  • Coconut water is also used as an intravenous hydration fluid in some developing countries where medical saline is unavailable.
  • Speedball usually refers to the intravenous injection of cocaine and heroin.
British Dictionary definitions for intravenous


(anatomy) within a vein: an intravenous injection Abbreviations (esp of an injection) IV, i.v.
Derived Forms
intravenously, adverb
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 intravenous

1847, coined in English from intra- "within, inside" + Latin venous, from vena "vein" (see vein). Related: Intravenously.

Online Etymology Dictionary, © 2010 Douglas Harper
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intravenous in Medicine

intravenous in·tra·ve·nous (ĭn'trə-vē'nəs)
Abbr. IV
Within or administered into a vein.

in'tra·ve'nous·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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intravenous in Science
  1. Existing or occurring within a vein.

  2. Administered into a vein, as an injection.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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intravenous in Culture
intravenous [(in-truh-vee-nuhs)]

A descriptive term for things within a vein. Intravenous feeding or medication is the passing of nutrients or medicines into a vein through a tube.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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