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| Rh fac·tor [ aar áych fàktər ] |
noun |
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| Definition: |
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substance in red blood cells: a group of antibody-producing substances antigens present in most people's red blood cells. Rh compatibility is important in matching blood for transfusions and between pregnant women and their fetuses.
See also Rh negativeRh positive
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| [Abbreviation of Rhesus factor] |
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