noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A radar or radio transceiver that transmits some signal in response to receiving a predetermined signal.

   "36 MHz transponder providing a pool of 794 reallocatable frequencies."

2. 2
   electrical device designed to receive a specific signal and automatically transmit a specific reply wordnet

Synonyms

All synonyms

parrotradio controltelemetry

Example

More examples

"36 MHz transponder providing a pool of 794 reallocatable frequencies."

Etymology

Blend of transmitter + responder.

Related phrases

emergency location transponderemergency locator transponderemergency transponderidentification friend or foe

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.