transponder
noun
Pronunciation: /trænˈspɒndər/
Definition
An electronic device that automatically transmits a specific signal when it receives a predetermined interrogation signal.
Examples
The pilot checked that the transponder was broadcasting the correct identification code.
Ground control lost contact with the flight after the transponder stopped sending data.
Modern satellites use a transponder to receive and relay communication signals back to Earth.
Synonyms of transponder
Words with a similar meaning to transponder:
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