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transpondeur

transponder

noun trahns-pon-DUHR Rare

Usage Note

Transpondeur is a technical term used in aviation, navigation, and telecommunications for a device that receives a signal and automatically transmits a reply. In air traffic control, it identifies aircraft on radar. The word is a calque of English 'transponder' (transmitter + responder).

Examples

"Le pilote active le transpondeur avant le décollage."

Natural Translation

The pilot activates the transponder before takeoff.

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