Noun: rhesus factor
- 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 anaemia
"The blood test determined her rhesus factor status";
- Rh factor, Rh
Derived forms: rhesus factors
Type of: antigen
Encyclopedia: Rhesus factor