blood group

noun

Definition of blood group

: one of the classes (such as those designated A, B, AB, or O) into which individuals or their blood can be separated on the basis of the presence or absence of specific antigens in the blood

— called also blood type

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The waiting list for a kidney transplant for a type A blood group is four to six years. — Fox News, "Garden sign seeking kidney donor yields 30 volunteers," 25 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blood group.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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The first known use of blood group was in 1916

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blood group

noun

Medical Definition of blood group

: one of the classes (as A, B, AB, or O) into which individual vertebrates and especially human beings or their blood can be separated on the basis of the presence or absence of specific antigens in the blood

— called also blood type