culdocentesis

noun
cul·​do·​cen·​te·​sis | \ ˌkəl-dō-ˌsen-ˈtē-səs, ˌku̇l- How to pronounce culdocentesis (audio) \
plural culdocenteses\ -​ˌsēz How to pronounce culdocenteses (audio) \

Medical Definition of culdocentesis

: removal of material from the pouch of Douglas by means of puncture of the vaginal wall