Rhesus factor

noun

Definitions

Noun
  1. 1
    An antigen of the Rhesus system; understood unless otherwise specified to refer to Rhesus factor D (RhD), which appears on the surface of the red blood cells of most (85%) humans. An incompatibility between the Rh-blood types of a mother and her baby may cause serious disease for the baby.
  2. 2
    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 wordnet

Etymology

The antigen was discovered in connection with a research of rhesus monkeys.

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