noun
1. : a pipe organ with an electric action
2. : a specialized tract of tissue in which electricity is generated and which consists of closely packed prisms typically of modified muscle tissue separated by sheaths of connective tissue and abundantly supplied with nerves, each prism in turn being composed of many layers of disklike electroplaxes separated from one another by a layer of gelatinous material into which the nerve fibers enter and from which they are distributed to one surface of an adjacent electroplax