ABO system

ABO system n. A classification system for human blood that identifies four major blood types based on the presence or absence of two antigens, A and [more]ABO system - Community and Resources

Noun
1. a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
(synonym) ABO blood group system, ABO group
(hypernym) classification system

noun
system of classifying blood groups
see note at BLOOD GROUP

[METODO DI CLASSIFICAZIONE DEL SANGUE UMANO]