Noun | 1. | ![]() device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water" flux applicator - an applicator for applying flux (as in soldering) paintbrush - a brush used as an applicator (to apply paint) spray gun - an applicator resembling a gun for applying liquid substances (as paint) in the form of a spray |