Advertisement

Advertisement

View synonyms for radar

radar

[ rey-dahr ]

noun

  1. 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.
  2. a means or sense of awareness or perception:

    lobbyists working under the media's radar.



radar

/ ˈreɪdɑː /

noun

  1. 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
  2. the equipment used in such detection
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

radar

/ där /

  1. 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.
  2. The equipment used in such detecting.
  3. See also Doppler effect

radar

  1. 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.
Discover More

Notes

Police use radar techniques to determine the speed of automobiles.
Discover More

Other Words From

  • anti·radar noun adjective
Discover More

Word History and Origins

Origin of radar1

1940–45, Americanism; ra(dio) d(etecting) a(nd) r(anging)
Discover More

Word History and Origins

Origin of radar1

C20 ra ( dio ) d ( etecting ) a ( nd ) r ( anging )
Discover More

Compare Meanings

How does radar compare to similar and commonly confused words? Explore the most common comparisons:

Discover More

Example Sentences

In June of this year, the show on everyone’s radar — including Kanye West, who reportedly went out of his way to attend — was Prototypes.

Now involuntary treatment is seemingly on their radar.

From Salon

Kyiv said that day it had managed to shoot down 62 drones, and that a further 67 were “lost” - meaning they were either downed by electronic warfare, or disappeared from radar screens.

From BBC

The International Institute for Strategic Studies refers to the facility as a “surveillance station” and says it is likely to contain a coastal radar surveillance system similar to Indian-built equipment elsewhere in Mauritius.

From BBC

In addition to all vehicles being fitted with a big red emergency button that can stop the system, the autonomous trucks have lasers and radars front and rear to detect collision risks.

From BBC

Advertisement

Related Words

Advertisement

Advertisement

Advertisement


RADAradar astronomy