| Noun | 1. | electro-acoustic transducer - a transducer that converts electrical to acoustic energy or vice versa cartridge, pickup - an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable diaphragm - electro-acoustic transducer that vibrates to receive or produce sound waves earphone, earpiece, headphone, phone - electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear; "it was not the typing but the earphones that she disliked" loudspeaker, loudspeaker system, speaker system, speaker unit, speaker - electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance microphone, mike - device for converting sound waves into electrical energy transducer - an electrical device that converts one form of energy into another |