(historical) A machine in which the energy of an electric current is used, by means of two small electromagnets, to keep up the vibrations of a large and heavily-weighted tuning fork whose arms are connected to two pistons working a miniature pump.

A blue paste made from Prussian blue and some oily substance, used to verify the mating of components by rubbing a coated workpiece against the target surface to leave marks.

plural of electrical engineer

plural of engine trouble

A field of engineering concerned with municipal infrastructure, including streets, water supply, sewers, electricity distribution, solid waste management and public parks.

(archaic) An engine to raise water. / (archaic) An engine moved by water. / (archaic) A machine for extinguishing fires; a fire engine.

plural of engine driver

A simple piledriver in which the monkey is lifted by the pulling of ropes.

A branch of engineering that deals with design and application of computers.

Alternative form of twin-engine