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
Looking for breathtaking coastline? Portugal's southern region, known as the Algarve, is filled with stunning landscapes (like the one above, top, at Ponta da Piedade) that have long lured swarms of European sun-seekers and are more recently on many U.S. travelers' radars.
—
Mackenzie Schmidt, Peoplemag, 19 June 2024
Even before April, the school known for decades of protests and proudly including such history in class instruction was on the radar of the House committee.
—Alan Wooten | The Center Square, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 18 June 2024
His performance over his final two seasons at Hamilton High School put him on teams’ draft radar.
—Meghan Montemurro, Chicago Tribune, 16 June 2024
Updates are based on additional damage reports, aerial drone surveys, and further radar analysis.
—Dan Belson, Baltimore Sun, 14 June 2024
See all Example Sentences for radar 
Mackenzie Schmidt, Peoplemag, 19 June 2024
Even before April, the school known for decades of protests and proudly including such history in class instruction was on the radar of the House committee.
—Alan Wooten | The Center Square, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 18 June 2024
His performance over his final two seasons at Hamilton High School put him on teams’ draft radar.
—Meghan Montemurro, Chicago Tribune, 16 June 2024
Updates are based on additional damage reports, aerial drone surveys, and further radar analysis.
—Dan Belson, Baltimore Sun, 14 June 2024
See all Example Sentences for radar
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.
Dictionary Entries Near radar
Cite this Entry
“Radar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radar. Accessed 28 Jun. 2024.
Copy CitationKids Definition
radar
noun
ra·dar
ˈrā-ˌdär 
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share