Webster's Revised Unabridged Dictionary · 1913

Autopsy

Autopsy ({not transcribed}) , noun

[Greek {not transcribed}, from {not transcribed} seen by one's self; {not transcribed} self + {not transcribed} seen: compare French autopsie. See Optic, a.]

1.
Personal observation or examination; seeing with one's own eyes; ocular view.
By autopsy and experiment. — Cudworth
2.
(Medicine) Dissection of a dead body, for the purpose of ascertaining the cause, seat, or nature of a disease; a post-mortem examination.