universal donor

donor /do·nor/ (do´ner)

1. an organism that supplies living tissue to be used in another body, as a person who furnishes blood for transfusion, or an organ for transplantation.

2. a substance or compound that contributes part of itself to another substance (acceptor).

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universal donor  a person whose blood is type O in the ABO blood group system; such blood is sometimes used in emergency transfusion.

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u·ni·ver·sal donor (yn-vûrsl)

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.

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universal donor,

a person with type O, Rh factor negative red blood cells. Packed red blood cells of this type may be used for emergency transfusion with minimal risk of incompatibility. Blood plasma is not universal plasma. See also blood donor, blood group, transfusion.

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universal donor,

n a person with type O, Rh factor negative red blood cells. Packed red blood cells of this type may be used for emergency transfusion with minimal risk of incompatibility.

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universal donor

Transfusion medicine A person with blood group O, whose RBCs lack A and B antigens and thus do not elicit a hemolytic transfusion reaction when the blood is transfused to a person with blood group A, B, AB or O. Cf Universal recipient.