Source : Webster's Revised Unabridged Dictionary (1913)

Autopsy \Au"top*sy\, n. [Gr. ?, fr. ? seen by one's self; ? self
   + ? seen: cf. F. autopsie. See {Optic}, a.]
   1. Personal observation or examination; seeing with one's own
      eyes; ocular view.

            By autopsy and experiment.            --Cudworth.

   2. (Med.) Dissection of a dead body, for the purpose of
      ascertaining the cause, seat, or nature of a disease; a
      post-mortem examination.

Source : WordNet®

autopsy
     n : an examination and dissection of a dead body to determine
         cause of death or the changes produced by disease [syn: {necropsy},
          {postmortem}, {PM}, {postmortem examination}]
     v : perform an autopsy on a dead body; do a post-mortem