WordNet
rhesus factor
n. 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 [syn: Rh factor, Rh]
Usage examples of "rhesus factor".
Muriel said someone at the sanatorium had told her that AB negative blood types amounted to only approximately three per cent of the global population, and it might be that their Rhesus Factor (whatever that was) was hostile or non-submissive to the virus or gas released from the rockets.