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2.
Any stationary weapon capable of indentifying and assaulting individual targets without the aide of human operators.
"The sentry gun could track up to five targets simultaneously."
by Plagued July 30, 2003
16 28

Words related to sentry gun:

disguised spy engineer tfc fps turret
 
1.
In TFC, a machinegun on a tripod that shoots on its own. Built by an engineer and avoided/destroyed by a disguised spy
"Somebody take out the sentry gun in the flag room!"
"We need a sentry gun in the flag room!"
by anonymous June 02, 2003
22 25