noun
Rh blood type
Medical term for the Rh blood group system, often used in contexts like blood donation, transfusion, or pregnancy.
Rh式血液型が陰性の人は少数派です。
People with Rh-negative blood type are a minority.
From English 'Rh' (Rhesus factor) + 式 (system) + 血液型 (blood type).