A transmitter is a device that sends information from one place to another. The term can refer to a variety of different devices, such as a SENDER (6 letters), RADIO (5 letters), CARRIER (7 letters), BEACON (6 letters), mike (4 letters), WIRE (4 letters), and neuron (6 letters). A SENDER is a device that sends out signals, while a RADIO is a device that transmits sound waves. A CARRIER is a device that carries a signal over a distance, while a BEACON is a device that emits a signal for navigation or communication purposes. A mike is a device that converts sound into electrical signals, while a WIRE is a device that carries an electrical signal. Finally, a neuron is a specialized cell that transmits nerve impulses.