noun
transponder
tran-SPON-duh
Transponder (noun) means a device that automatically sends out a signal when it receives a particular incoming signal. Example: “Air traffic control tracks planes using the signal from each aircraft's transponder.”
noun
1
A device that automatically sends out a signal when it receives a particular incoming signal.
"Air traffic control tracks planes using the signal from each aircraft's transponder."
"The tollbooth read the car's transponder as it passed under the sensor."
How to use transponder
Learner’s notesIn plain EnglishA gadget that replies automatically when it's pinged by the right signal — used in aircraft, tollbooths, and tracking systems.
Common pairings
aircraft transponder
radio transponder
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Word forms
- Plural
- transponders
Fill the gap
Can you complete this real example?
Air traffic control tracks planes using the signal from each aircraft's _____.
Etymology
A blend of "transmitter" and "responder."
Rhymes for transponder
See all rhymes for transponder →Frequently asked questions
What does “transponder” mean?
The word “transponder” means a device that automatically sends out a signal when it receives a particular incoming signal. In plain terms, a gadget that replies automatically when it's pinged by the right signal — used in aircraft, tollbooths, and tracking systems.
How do you pronounce “transponder”?
“Transponder” is pronounced tran-SPON-duh (/tɹænˈspɑn.dɚ/ in IPA).
How do you use “transponder” in a sentence?
Here is “transponder” used in a sentence: “Air traffic control tracks planes using the signal from each aircraft's transponder.”
What part of speech is “transponder”?
“Transponder” is a noun.
