radar

noun

ra·​dar ˈrā-ˌdär How to pronounce radar (audio)
often attributive
1
: a device or system consisting usually of a synchronized radio transmitter and receiver that emits radio waves and processes their reflections for display and is used especially for detecting and locating objects (such as aircraft) or surface features (as of a planet)
2
: range of notice
fell off the radar after losing their first three games

Examples of radar in a Sentence

The approaching planes were detected by radar.
Recent Examples on the Web Illmatic’s release initially flew under the mainstream radar. C. Brandon Ogbunu, WIRED, 19 Apr. 2024 All of southeast Michigan is under a severe thunderstorm watch until 7 p.m. Be prepared for whatever is in Michigan's weather forecast with live doppler radar from the National Weather Service below. Tanya Wildt, Detroit Free Press, 17 Apr. 2024 Read More: How the U.S. Rallied to Defend Israel A lot of vital data came from a hush-hush U.S. installation in southern Israel: a huge radar facility, not far from Israel’s nuclear reactor at Dimona, tasked with monitoring the skies to the East of Israel. Yossi Melman and Dan Raviv, TIME, 15 Apr. 2024 Less conspicuously, American radar and tracking systems arrayed across the Middle East, some of them in Arab countries that don’t often advertise their partnership with Israel, helped intercept Iran’s drones and missiles. Dexter Filkins, The New Yorker, 14 Apr. 2024 Upon excavation of the site — guided by ground-penetrating radar — researchers uncovered a total of 306 artifacts. Brendan Rascius, Miami Herald, 12 Apr. 2024 Investigators allegedly uncovered discussions with several more drug dealers not previously on their radar, as well as texts between Pike and a man in Brown’s circle, where drug and gun sales were discussed. Nate Gartrell, The Mercury News, 11 Apr. 2024 Former Stetson guard Jalen Blackmon, 6-3, 190 has been on Calipari’s radar since entering the portal. Richard Davenport, arkansasonline.com, 8 Apr. 2024 Bill Connolly, a San Francisco investment banker and associate of William Newsom who played baseball at Santa Clara in the 1960s, put the younger Newsom on the team’s radar, according to Cummins, the former assistant coach. Calmatters, The Mercury News, 4 Apr. 2024

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

Word History

Etymology

radio detecting and ranging

First Known Use

1941, in the meaning defined at sense 1

Time Traveler
The first known use of radar was in 1941

Dictionary Entries Near radar

Cite this Entry

“Radar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radar. Accessed 25 Apr. 2024.

Kids Definition

radar

noun
ra·​dar ˈrā-ˌdär How to pronounce radar (audio)
: a device that sends out radio waves for detecting and locating an object by the reflection of the radio waves and that may use this reflection to find out the position and speed of the object
Etymology

from radio detecting and ranging

More from Merriam-Webster on radar

Last Updated: - Updated example sentences
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