ADJ. clever, ingenious | labour-saving, useful | complex, sophisticated | simple | hi-tech | hand-held | automatic, electrical, electronic, mechanical | bugging, contraceptive, measuring, safety, timing, warning Police found several bugging devices in the room. | explosive, incendiary An incendiary device exploded in the store, setting fire to furniture.
VERB + DEVICE be fitted with, have All new cars are now fitted with these safety devices. | design, develop, make | use He measured the room using an ingenious new electronic device.
DEVICE + VERB consist of sth The device consists of a large wheel mounted on a metal post. | be designed to a tiny device designed to trace telephone calls | work The device worked exactly as I'd hoped.
PREP. ~ for a useful device for checking electrical circuits