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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
/ ˈɪɑː /
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
- 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 51Թ Forms
- t·d noun adjective
51Թ History and Origins
Origin of radar1
51Թ History and Origins
Origin of radar1
Compare Meanings
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Example Sentences
The antenna will use radar with a very long wavelength - allowing it to see deeper inside forests and reveal branches and trunks obscured by the canopy.
Will Lille striker Jonathan David come on to Liverpool's radar if Darwin Nunez leaves?
Country and gospel music weren’t on her radar.
Never drafted in three seasons of eligibility, Yeaman is suddenly on every pro team’s radar this season for what he has been achieving at Irvine.
Heavy rare earths are used in many military fields such as missiles, radar, and permanent magnets.
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