electroreceptor: Meaning and Definition of

e•lec•tro•re•cep•tor

1. any of an array of tiny, electrically sensitive ampullar organs present in sharks, electric eels, catfish, and certain other fishes, each organ being composed of a bundle of nerve fibers and sensory cells within a gel-filled conducting duct that can pick up weak electrical currents emitted by creatures moving in the water.