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A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system. Some of these antigens are also present on the surface of other types of cells of various tissues. Several of these red blood cell surface antigens can stem from one allele (or very closely linked genes) and collectively form a blood group system. Blood types are inherited and represent contributions from both parents. A total of 30 human blood group systems are now recognized by the International Society of Blood Transfusion (ISBT).
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The following video provides you with the correct English pronunciation of the word "Ab-", to help you become a better English speaker.
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|Webster's Revised Unabridged Dictionary (1913)||Download this dictionary|
A prefix in many words of Latin origin. It signifies from, away , separating, or departure, as in abduct, abstract, abscond. See A-(6).
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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