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Any of several immunologically distinct, genetically determined classes of human blood that are based on the presence or absence of certain antigens and are clinically identified by characteristic agglutination reactions. Also called blood type.
(Medicine) any one of the various groups into which human blood is classified on the basis of its agglutinogens. Also called: blood type
any of various classes into which human blood can be divided according to immunological compatibility based on the presence or absence of specific antigens on red blood cells. Also called blood type. Compare ABO system, Rh factor.
See blood type.
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|Noun||1.||blood group - human blood cells (usually just the red blood cells) that have the same antigens|
blood - the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets; "blood carries oxygen and nutrients to the tissues and carries away waste products"; "the ancients believed that blood was the seat of the emotions"
group O, type O, O - the blood group whose red cells carry neither the A nor B antigens; "people with type O blood are universal donors"
Rh positive, Rh-positive blood type - the blood group (approximately 85% of people) whose red cells have the Rh factor (Rh antigen)