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transponder

or ٰ·Dz·ǰ

[ tran-spon-der ]

noun

  1. a radio, radar, or sonar transceiver that automatically transmits a signal upon reception of a designated incoming signal.


transponder

/ ٰæˈɒԻə /

noun

  1. a type of radio or radar transmitter-receiver that transmits signals automatically when it receives predetermined signals
  2. the receiver and transmitter in a communications or broadcast satellite, relaying received signals back to earth
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

transponder

/ ٰă-ŏə /

  1. A radio or radar transmitter and receiver that responds to an incoming signal either by broadcasting its own predetermined signal (as in aircraft identification systems) or by relaying the incoming signal at a different frequency (as in satellite communications).
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yvlog History and Origins

Origin of transponder1

First recorded in 1940–45; trans(mitter) + (res)ponder
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yvlog History and Origins

Origin of transponder1

C20: from transmitter + responder
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Example Sentences

Examples have not been reviewed.

Falls off a cliff to her death during a tense moment with Misty, who had revealed to her that she destroyed the plane’s transponder to sabotage their chances of getting rescued.

From

He said that in order to fly in civilian airspace, the military helicopter would have needed to be fitted with a transponder alerting surrounding aircraft to its position.

From

Marine tracking sites show the ships finally docked on Tuesday evening, after which they switched off their transponders.

From

The tolls are collected through a FaTrak transponder mounted on a vehicle’s dashboard.

From

“This transponder that Nokia uses, it’s like a celebrity,” says Mr Verheul, explaining how the kit is booked up for use at various locations in advance.

From

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