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radar
[ rey-dahr ]
noun
- Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns.
- a means or sense of awareness or perception:
lobbyists working under the media's radar.
radar
/ ˈreɪdɑː /
noun
- a method for detecting the position and velocity of a distant object, such as an aircraft A narrow beam of extremely high-frequency radio pulses is transmitted and reflected by the object back to the transmitter, the signal being displayed on a radarscope. The direction of the reflected beam and the time between transmission and reception of a pulse determine the position of the object Former nameradiolocation
- the equipment used in such detection
radar
/ rā′där /
- A method of detecting distant objects and determining their position, speed, material composition, or other characteristics by causing radio waves to be reflected from them and analyzing the reflected waves. The waves can be converted into images, as for use on weather maps.
- The equipment used in such detecting.
- See also Doppler effect
radar
- A method of finding the position and velocity of an object by bouncing a radio wave off it and analyzing the reflected wave. Radar is an acronym for ra dio d etection a nd r anging.
Notes
Other Words From
- anti·radar noun adjective
Word History and Origins
Origin of radar1
Word History and Origins
Origin of radar1
Compare Meanings
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Example Sentences
Now he's back in the Oval Office, much has changed and Northern Ireland will likely be far from the US president's radar.
College basketball had never really been on his radar, even as friends tried for years to convince him he’d be a natural.
It was at that camp that Kupp first emerged on Snead’s radar screen.
Somerset, a British Type 23 frigate, used its radar system to report on the movements and a Merlin helicopter from its naval air squadron was also launched to gather information from the sky.
Then he sent her a list of “top 5 things to protect if possible,” including a particular fighter jet, radar technology and a system to improve interoperability across the military’s branches.
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