Dynamo

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dynamo (generator) Device that converts mechanical energy into electrical energy by the principle of electromagnetic induction that uses magnetism to produce an electric current. In a simple dynamo, a conductor, usually an open coil of wire (armature), is placed between the poles of a permanent magnet. This armature is rotated within the magnetic field, inducing an electric current. See also alternator

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dy·na·mo / ˈdīnəˌmō/ • n. (pl. -mos) a machine for converting mechanical energy into electrical energy; a generator. ∎ inf. an extremely energetic person: she was a dynamo in London politics.

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dynamoammo, Gamow •Rameau • Malmö •demo, memo •Elmo • Palermo •emo, primo, supremo •limo •gizmo, gran turismo, machismo, verismo •Eskimo • Geronimo •duodecimo, octodecimo, sextodecimo •altissimo, fortissimo, generalissimo, pianissimo •proximo • centimo • ultimo • Cosmo •Pontormo •chromo, duomo, Homo, majordomo, Nkomo, promo, slo-mo •Profumo, sumo •Alamo • dynamo • paramo

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dynamo XIX. short for dynamo-(electric-) machine, f. Gr. dúnamis force (see DYNAMIC); for the comb. form see -O-.