• synonyms


[in-truh-vee-nuh s]
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  1. within a vein.
  2. of, pertaining to, employed in, or administered by injection into a vein: an intravenous solution.
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  1. an intravenous injection.
  2. intravenous feeding. Abbreviation: IV
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Origin of intravenous

First recorded in 1840–50; intra- + venous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for intravenous

drip, hypodermic, shot

Examples from the Web for intravenous

Contemporary Examples of intravenous

Historical Examples of intravenous

British Dictionary definitions for intravenous


  1. anatomy within a veinan intravenous injection Abbreviations (esp of an injection): IV, i.v.
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Derived Formsintravenously, 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

Word Origin and History for intravenous


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

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Online Etymology Dictionary, © 2010 Douglas Harper

intravenous in Medicine


  1. Within or administered into a vein.
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Related formsin′tra•venous•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

intravenous in Science


  1. Existing or occurring within a vein.
  2. Administered into a vein, as an injection.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

intravenous in Culture



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.

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