splenectomize
transitive verb
sple·nec·to·mize
variants:
or chiefly British splenectomise \ spli-ˈnek-tə-ˌmīz 
\
\
splenectomized
or chiefly British splenectomised;
splenectomizing
or chiefly British splenectomising
Medical Definition of splenectomize
: to excise the spleen of