ALL meanings of radar
ra·dar
R r - noun radar 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. 1
- noun radar a means or sense of awareness or perception: lobbyists working under the media's radar. 1
- noun radar location device 1
- noun radar A system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects, by sending out pulses of high-frequency electromagnetic waves that are reflected off the object back to the source. 1
- variable noun radar Radar is a way of discovering the position or speed of objects such as aircraft or ships when they cannot be seen, by using radio signals. 0
- noun radar 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 0
- noun radar the equipment used in such detection 0
- noun radar any of several systems or devices using transmitted and reflected radio waves for detecting a reflecting object, as an aircraft, and determining its direction, distance, height, or speed, or in storm detection, mapping, navigation, etc. 0