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
Stay Engaged Send comments, story ideas and events for our radar to cmartel@thehill.com.
—
Cate Martel, The Hill, 4 Nov. 2024
Mike Malott Was Malott's loss to Neil Magny a blip on the radar?
—Brian Mazique, Forbes, 1 Nov. 2024
Style your with Chloé’s funnel-neck peacoat—a fall outerwear trend very much on our radar—Arch4’s argyle sweater, and a pair of suede ankle boots from Madewell.
Shop More Corduroy Pants:
The Pencil Skirt With a Pop of Pistachio
The number one must-have in any minimalist’s wardrobe this fall?
—Laura Jackson, Vogue, 31 Oct. 2024
Following Iran's first direct attack on Israel in April, the IAF launched a symbolic operation, targeting an S-300 radar unit near Isfahan, south of Tehran.
—Nina Turner, Newsweek, 31 Oct. 2024
See all Example Sentences for radar 
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Cate Martel, The Hill, 4 Nov. 2024
Mike Malott Was Malott's loss to Neil Magny a blip on the radar?
—Brian Mazique, Forbes, 1 Nov. 2024
Style your with Chloé’s funnel-neck peacoat—a fall outerwear trend very much on our radar—Arch4’s argyle sweater, and a pair of suede ankle boots from Madewell.
Shop More Corduroy Pants:
The Pencil Skirt With a Pop of Pistachio
The number one must-have in any minimalist’s wardrobe this fall?
—Laura Jackson, Vogue, 31 Oct. 2024
Following Iran's first direct attack on Israel in April, the IAF launched a symbolic operation, targeting an S-300 radar unit near Isfahan, south of Tehran.
—Nina Turner, Newsweek, 31 Oct. 2024
See all Example Sentences for radar
Dictionary Entries Near radar
Cite this Entry
“Radar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radar. Accessed 22 Nov. 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
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