Cholecystotomy :: Cholecystotomy (n.) The operation of making an opening in the gall bladder, as for the removal of a gallstone..
Cystotome :: Cystotome (n.) A knife or instrument used in cystotomy.
Cystotomy :: Cystotomy (n.) The act or practice of opening cysts; esp., the operation of cutting into the bladder, as for the extraction of a calculus..