1) Operation 2) Surgery 3) Surgical operation 4) Surgical procedure 5) Surgical process 
• (n.) Act of exenterating.
Surgery to remove organs within a body cavity.
Removal of internal organs and tissues, usually radical removal of the contents of a body cavity. ... Synonym: evisceration. ... Origin: G. Ex, out, + enteron, bowel ... (05 Mar 2000) ... 
(ek-sen″tәr-a´shәn) extensive evisceration of organs and nearby structures. in ophthalmology, removal of the entire contents of the orbit. pelvic exenteration removal of the organs and adjacent structures of the pelvis.
Ex·en`ter·a'tion noun [ Late Latin exenteratio .] Act of exenterating. [ R.]
Type: Term Pronunciation: eks′en-tĕr-ā′shŭn Definitions: 1. Removal of internal organs and tissues, usually radical removal of the contents of a body cavity. Synonyms: evisceration1
[n] - surgical removal of the organs within a body cavity (as those of the pelvis)
noun surgical removal of the organs within a body cavity (as those of the pelvis)
Removal of the entire orbital contents, the globe and everything within the orbit.