• synonyms


[trans-fyoo-zhuh n]
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  1. the act or process of transfusing.
  2. Medicine/Medical. the direct transferring of blood, plasma, or the like into a blood vessel.
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Origin of transfusion

1570–80; < Latin trānsfūsiōn- (stem of trānsfūsiō) decanting, intermingling, equivalent to trānsfūs(us) (see transfuse) + -iōn- -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

transmission, transfer, exchange

Examples from the Web for transfusion

Contemporary Examples

Historical Examples

  • "Needs a transfusion," remarked Gootes as we stood on the sidewalk before it.

  • Transfusion of blood into a vein three or four ounces a day?

    Zoonomia, Vol. II

    Erasmus Darwin

  • A similar operation is the transfusion of blood, with which subject indeed I began.

    Human Animals

    Frank Hamel

  • It got into his blood, you know, and the only way they could save his life was by transfusion.

    Left Half Harmon

    Ralph Henry Barbour

  • There was no hope for her; only a transfusion of blood could save her; she was almost bloodless.

British Dictionary definitions for transfusion


  1. the act or an instance of transfusing
  2. the injection of blood, blood plasma, etc, into the blood vessels of a patient
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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 transfusion


1570s, "action of pouring liquid from one vessel to another," from Latin transfusionem (nominative transfusio), noun of action from transfusus (see transfuse). Sense of "transfering of blood from one individual to another" first recorded 1640s.

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Online Etymology Dictionary, © 2010 Douglas Harper

transfusion in Medicine


  1. The transfer of whole blood or blood products from one individual to another.
  2. The intravascular injection of physiological saline solution.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

transfusion in Science


  1. The transfer of blood or a component of blood, such as red blood cells, plasma, or platelets, from one person to another to replace losses caused by injury, surgery, or disease. Donated blood products are tested for blood type and certain infectious diseases and stored in blood banks until they are used. The blood of the donor is shown to be histologically compatible, or crossmatched, with that of the recipient before transfusion. See more at Rh factor. See Note at blood type.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.