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ABO system
ABO system /ˌeɪbiːˈoʊ ˈsɪstəm/
noun
-
A classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
(
ABO blood group system
, ABO group
, ABO system
)
a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O