Rh

/ˈɑr ˌeɪtʃ/
IPA guide

Definitions of Rh
  1. noun
    a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia
    synonyms: Rh factor, rhesus factor
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    type of:
    antigen
    any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
  2. noun
    a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
    synonyms: atomic number 45, rhodium
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    type of:
    metal, metallic element
    any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
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