splenectomy
noun [ C or U ] uk/spləˈnek.tə.mi/ us/spləˈnek.tə.mi/
脾切除（术）
a medical operation to remove the spleen (= an organ near the stomach that produces and cleans blood)
Patients who have undergone a splenectomy are more prone to infections. 做过脾切除手术的患者更容易发生感染。