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universal donor

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noun
  1. a person with blood of group O.
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Origin of universal donor

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for universal donor

universal donor

noun
  1. a person who has blood of group O and whose blood may be safely transfused to persons with most other blood types
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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

universal donor in Medicine

universal donor

(yōō′nə-vûrsəl)
n.
  1. A person whose red blood cells do not contain agglutinogen A or B and are therefore not agglutinated by plasma containing either of the ordinary isoagglutinins, alpha or beta; a person who has group O blood.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

universal donor in Science

universal donor

[yōō′nə-vûrsəl]
  1. A person who has group O blood and is therefore able to serve as a donor to a person with any other blood type. Group O blood contains red blood cells that do not have the antigen A or B and thus do not react with antibodies to these antigens found in the plasma of the other blood types. See also blood type.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.