Source : Webster's Revised Unabridged Dictionary (1913)

Disembowelment \Dis`em*bow"el*ment\, n.
   The act of disemboweling, or state of being disemboweled;
   evisceration.

Source : WordNet®

disembowelment
     n : the act of removing the bowels or viscera; the act of
         cutting so as to cause the viscera to protrude [syn: {evisceration}]