transponder
- noun
- /trænˈspɒndər/
- Specialized
- Your transponder indicates you're descending.
- use of transponders
Much the same way you were broadcasting a signal into the radio transponder in your car.
- Much the same way you were broadcasting a signal into the radio transponder in your car.
- But anyway, Russia is now claiming that our drone was flying with its transponders turned off because it was trying to spy on the Russian borders.
Examples
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The aircraft's transponder sent a signal that helped air traffic controllers track its location.
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The sea king is equipped with an emergency transponder, that when activated, sends out a traceable distress signal.
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So the drug lord is the one who put the transponder in with the money.
Blog text (20) -
I turned off the transponder.
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The screen at the right provides street address, transponder ID, reading status, and actual reading.
Academic text (1997) -
Concerns about privacy and fraud may also be holding back transponder use.
Academic text (2003) -
This transponder chip is completely untraceable.
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One solution is the installation of transponders on a house or other site.
Academic text (2009) -
They said that he lost his transponder after he turned off-course.
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Even if there is extensive regional coverage and strong transponder waves, they can penetrate some obstacles.
Blog text (19)
Synonyms
A device that sends and receives signals, like a radio
How Helpful
Surface Forms
Morphology
transponder = transpond + er
The meaning 'a device that transmits a reply' is inferable, but the base 'transpond' is a technical/contracted formation (not a standalone English verb), so the morphology is not a regular, fully transparent derivation for learners.
Etymology
Transponder comes from joining trans- ('across' or 'through') and responder ('one who replies'), and it is like the familiar words transmit and respond. So a transponder is a device that automatically 'replies by sending' a signal when it receives one.