Dictionary

ABO system

noun \ˌā-(ˌ)bē-ˈō-\

Definition of ABO SYSTEM

:  the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups
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First Known Use of ABO SYSTEM

1944
Medical Dictionary

ABO system

noun \ˌā-(ˌ)bē-ˈō-\

Medical Definition of ABO SYSTEM

:  the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups

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