Proving ground
A proving ground, also referred to as a testing ground, was a military location where personnel, weapons and similar technologies were tested.

In the 1940s, a proving ground was located in Nevada and was the site of the detonation of a nuclear weapon in 1947. Quark, Odo, Rom, and Nog later brought Quark's Treasure to the proving ground, where they flew into the nuclear explosion. ()

Another Earth  proving ground for nuclear weapons in the same era was located at the Bikini Atoll. ()

The Xindi maintained a proving ground in the Calindra system, where they tested a prototype for their weapon in late 2153. ()

A region of space in the Delta Quadrant designated Subspace Munitions Range 434 was used for weapons tests by an unknown species in 2377. ()

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Military