radar beacon


: a radar transmitter that upon receiving a radar signal emits a signal which reinforces the normal reflected signal or which introduces a code into the reflected signal especially for identification purposes

Examples of radar beacon in a Sentence

Recent Examples on the Web Flights must be equipped with a two-way radio, an operable radar beacon transponder with automatic altitude reporting capability and an operable ADS-B Out equipment unless authorized otherwise. The Arizona Republic, 15 Jan. 2024 Many lighthouses remain active and continue to serve as useful landmarks to guide seafarers home, although modern navigational methods such as GPS, nautical charts, and radar beacons play the dominant role. Emily Sweeney, BostonGlobe.com, 25 Aug. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'radar beacon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1945, in the meaning defined above

Time Traveler
The first known use of radar beacon was in 1945

Dictionary Entries Near radar beacon

Cite this Entry

“Radar beacon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radar%20beacon. Accessed 22 Apr. 2024.

More from Merriam-Webster on radar beacon

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!