plural of breath test

(idiomatic) Alternative form of testbed

To fly an aircraft in order to evaluate its performance

Applied to premium gasoline. / (humorous, by extension) Of coffee: not decaffeinated. / Of a high standard.

To drive a motor vehicle in order to evaluate it, especially before potential purchase. / (by extension) To try out a product before committing to purchasing it.

plural of litmus test

(cricket) A five-day first class match between sides representing the official Test nations. / (rugby union, field hockey) An international match between the teams of two nations.

A test of the stability of a vehicle, which determines the maximum speed it can have and still steer clear of an obstacle (such as a child or a large animal running in front of the car) without going out of control.

(figuratively) A rigorous test or appraisal of the quality or worth of something. / (historical) In the 1960s, a party based around the use and advocacy of the psychedelic drug LSD ("acid").

A laboratory bench upon which a device is physically tested. / A virtual simulation of a device for the same purpose.