Adjective rh negative has 1 sense
  1. rh-negative - of persons (or their blood) lacking the Rh factor present in their red blood cells
    Antonym: rh-positive
,Noun rh negative has 1 sense
  1. Rh-negative blood type, Rh-negative blood, Rh negative - the blood group whose red cells lack the Rh factor (Rh antigen)
    --1 is a kind of blood group, blood type
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