ABO system

n. a system of four types (A, AB, B, and O) by which human blood may be classified, based on the presence or absence of certain inherited antigens.

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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
Hypernyms: ↑classification system

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\\|āˌbēˈō-, ˌābēˈō-\ noun
Usage: usually capitalized A&B&O
: the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the four blood groups A, B, AB, or O according to the particular antigens passed from parents to child — called also ABO group; compare isoantibody, rh factor

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Physiol. a classification of human blood based on the presence on the surface of red blood cells of one or both of two specific antigens, designated A and B, or their absence, designated O: every person has one of four possible inherited blood types, A, B, AB, or O, and has antibodies circulating in the blood that clump with any antigen that is not of that type, persons with type O thus being able to donate blood devoid of the antigens for transfusion to types A, B, and AB but able to receive only blood of type O.
[1940-45]

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ABO system UK [ˌeɪ biː ˈəʊ ˌsɪstəm] US [ˌeɪ bi ˈoʊ ˌsɪstəm] noun [singular] biology
the system that divides human blood into four main groups, A, B, AB, and O
Thesaurus: heart, blood and circulationhyponym

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n. a system of four basic types (A, AB, B, and O) into which human blood may be classified, based on the presence or absence of certain inherited antigens

Useful english dictionary. 2012.

Look at other dictionaries:

  • ABO system — ā (.)bē ō n the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups * * * see blood group …   Medical dictionary

  • ABO system — n. a system of antigens found on human red blood cells, together with the corresponding antibodies of these antigens: inherited antigens determine major blood types (A, B, AB, O), which help determine compatibility for blood transfusions …   English World dictionary

  • ABO system — noun Date: 1944 the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups …   New Collegiate Dictionary

  • ABO system — noun a system of four basic types (A, AB, B, and O) into which human blood may be classified, based on the presence or absence of inherited antigens …   English new terms dictionary

  • ABO system — UK [ˌeɪ biː ˈəʊ ˌsɪstəm] / US [ˌeɪ bɪ ˈoʊ ˌsɪstəm] noun [singular] biology the system that divides human blood into four main groups, A, B, AB, and O …   English dictionary

  • ABO system — Physiol. a classification of human blood based on the presence on the surface of red blood cells of one or both of two specific antigens, designated A and B, or their absence, designated O: every person has one of four possible inherited blood… …   Universalium

  • ABO system — see blood group …   The new mediacal dictionary

  • ABO system — n. phl a classification of human blood into four major groups, A, B, AB, and O, based on the presence on the surface of red blood cells of either of two antigens, A or B, or their absence, O: used in determining compatibility for transfusions •… …   From formal English to slang

  • Exclusions of paternity on the ABO system — ▪ Table Exclusions of paternity on the ABO system matings possible children impossible children O X O O A, B, AB O X A O, A B, AB O X B O, B A, AB O X AB A, B O, AB A X A O, A B, AB A X B O, A, B, AB A X AB A, B, AB O B X B O, B A, AB B X AB A, B …   Universalium

  • ABO blood group system — ABO redirects here. For other uses, see ABO (disambiguation). H substance redirects here. For use in inflammation, see histamine. ABO blood group antigens present on red blood cells and IgM antibodies present in the serum The ABO blood group… …   Wikipedia

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