The fault of the macroeconomics profession was not so much rational expectations, which is a convenient and useful device.

Our use of sound is simply a convenient device for generating certain patterns of electrical activity.

The murderer had chosen the local train as a convenient device to aid his scheme.

Health care issues are only convenient devices, like truth serums, that the writers inject into characters' lives to force some revelation from them.

It was not until the late 1950s that a portable, reliable and convenient device would be developed as a tool for increasing reading speed.

Amnesia has been used as a convenient device in fiction for centuries, usually in defiance of known facts.

It also seems to have been a convenient device for Lloyd George to get out of political commitments which he did not wish to enter.

A Perkin triangle is also a convenient device for drying solvents.

It can be a most convenient device.

Like the idea of having a convenient wrist-worn device that communicates with the phone in my pocket.