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| tran·spond·er [ tran spóndər ] (plural tran·spond·ers) or tran·spon·dor [ tran spóndər ] (plural tran·spon·dors) |
noun |
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| Definition: |
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1. radio or radar transceiver: a radio or radar transceiver that automatically transmits a signal of its own when it receives a predetermined signal from elsewhere, used especially for locating and identifying objects
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2. satellite receiver and transmitter: a receiving and transmitting device in a communication or broadcast satellite that relays the signals it receives back to Earth
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| [Mid-20th century. <transmit + respond] |
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