Medical Dictionary
3 ENTRIES FOUND:

blood group

noun

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
April 02, 2015
capricious Hear it
impulsive or unpredictable
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