universal donor

noun

a person with blood of group O.

Origin of universal donor

First recorded in 1920–25

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for universal donor

universal donor

noun

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

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-vûr′səl]

n.

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.

universal donor in Science

universal donor

[yōō′nə-vûr′səl]

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.