bench test chiefly ComputingDefinition of bench test noun a test carried out on a machine, a component, or software before it is released for use, to ensure that it works properly. verb (bench-test) [with object] run a bench test on: they are offering you the chance to bench-test their applications [no object, with adverbial] give particular results during a bench test:it bench-tests two times faster than the previous versionbench test in other Oxford dictionaries Definition of bench test in the US English dictionary