Turnkey
Pronunciation : Turn"key`
Part of Speech : n.;
Definition : 1. A person who has charge of the keys of a prison, for opening and fastening the doors; a warder.
2. (Dentistry)
Defn: An instrument with a hinged claw, -- used for extracting teeth with a twist.
pl. Turnkeys (.
Source : Webster's Unabridged Dictionary, 1913