erythrocytopenia

noun
eryth·​ro·​cy·​to·​pe·​nia | \ i-ˌrith-rə-ˌsīt-ə-ˈpē-nē-ə How to pronounce erythrocytopenia (audio) \

Medical Definition of erythrocytopenia

: deficiency of red blood cells

called also erythropenia