[ˈeɪ_tʃ b_l_ˈʌ_d ɡ_ɹ_ˈuː_p], [ˈe͡ɪt͡ʃ blˈʌd ɡɹˈuːp], [ˈeɪtʃ blˈʌd ɡɹˈuːp]
Definitions of H Blood Group
The major human blood type system which depends on the presence or absence of two antigens A and B. Type O occurs when neither A nor B is present and AB when both are present. A and B are genetic factors that determine the presence of enzymes for the synthesis of certain glycoproteins mainly in the red cell membrane.