transponder

or tran·spon·dor

[ tran-spon-der ]

/ trænˈspɒn dər /

noun

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

Origin of transponder

First recorded in 1940–45; trans(mitter) + (res)ponder

Words nearby transponder

transplantation, transplantation antigen, transplantee, trans+, transpolar, transponder, transponible, transpontine, transport, transportation, transport café

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for transponder

The tripwire for an unfolding plot to take control of the flight would be the transponder, operated by a switch beside the pilots.
Who Gagged the Search for MH370?|Clive Irving|June 22, 2014|DAILY BEAST
However, to use the phrase “switched off” in relation to the transponder and the ACARS was in itself prejudicial.
Who Gagged the Search for MH370?|Clive Irving|June 22, 2014|DAILY BEAST
With so much else crumbling, the transponder lies at the heart of this great mystery.
Malaysia’s Sinister Timeline for Flight 370 Unravels|Clive Irving|March 18, 2014|DAILY BEAST
Government officials now admit the data system and transponder quit communicating after the pilots said things were OK.
Malaysia’s Sinister Timeline for Flight 370 Unravels|Clive Irving|March 18, 2014|DAILY BEAST

The moment the transponder turned off means everything to the investigation—and it happened after the pilots said things were OK.
The Tripwire on Flight 370|Clive Irving|March 17, 2014|DAILY BEAST

British Dictionary definitions for transponder

transponder

transpondor

/ (trænˈspɒndə) /

noun

a type of radio or radar transmitter-receiver that transmits signals automatically when it receives predetermined signals

the receiver and transmitter in a communications or broadcast satellite, relaying received signals back to earth

Word Origin for transponder

C20: from transmitter + responder

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

Scientific definitions for transponder

transponder

[ trăn-spŏn′dər ]

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).

单词	transponder
释义	transponder or tran·spon·dor [ tran-spon-der ] / trænˈspɒn dər / noun a radio, radar, or sonar transceiver that automatically transmits a signal upon reception of a designated incoming signal. Origin of transponder First recorded in 1940–45; trans(mitter) + (res)ponder Words nearby transponder transplantation, transplantation antigen, transplantee, trans+, transpolar, transponder, transponible, transpontine, transport, transportation, transport café Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for transponder The tripwire for an unfolding plot to take control of the flight would be the transponder, operated by a switch beside the pilots. Who Gagged the Search for MH370?\|Clive Irving\|June 22, 2014\|DAILY BEAST However, to use the phrase “switched off” in relation to the transponder and the ACARS was in itself prejudicial. Who Gagged the Search for MH370?\|Clive Irving\|June 22, 2014\|DAILY BEAST With so much else crumbling, the transponder lies at the heart of this great mystery. Malaysia’s Sinister Timeline for Flight 370 Unravels\|Clive Irving\|March 18, 2014\|DAILY BEAST Government officials now admit the data system and transponder quit communicating after the pilots said things were OK. Malaysia’s Sinister Timeline for Flight 370 Unravels\|Clive Irving\|March 18, 2014\|DAILY BEAST The moment the transponder turned off means everything to the investigation—and it happened after the pilots said things were OK. The Tripwire on Flight 370\|Clive Irving\|March 17, 2014\|DAILY BEAST British Dictionary definitions for transponder transponder transpondor / (trænˈspɒndə) / noun a type of radio or radar transmitter-receiver that transmits signals automatically when it receives predetermined signals the receiver and transmitter in a communications or broadcast satellite, relaying received signals back to earth Word Origin for transponder C20: from transmitter + responder 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 Scientific definitions for transponder transponder [ trăn-spŏn′dər ] 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). The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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