Deadman

Noun

1. (Can we verify this sense?) A corpse.

   "There is no deadman to be found at Deadman's Curve."

2. A long object, often a timber or log, buried to serve as an anchor for a wall or for stays.

   "The building code requires deadmen for retaining walls."

3. A cutout device that operates in the event that an operator releases the control handles, leaves the operator's seat, or otherwise seems to be no longer present and alert.

   "a deadman device"