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- Dictionaryra·dar/ˈrāˌdär/
noun
- 1. 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.
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The meaning of RADAR is 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).
a system that uses radio waves to find the position of objects that cannot be seen: Other vessels in the area show up on the ship's radar ( screen). SMART Vocabulary: related words and phrases. Broadcasting: radio. am. antenna. anti-jamming. anti-radar. autotune. bandwidth. beacon. CB. LW. medium wave. multi-wavelength. multichannel. MW. receiver.
May 31, 2024 · Radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distance. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them.
Radar of the type used for detection of aircraft. It rotates steadily, sweeping the airspace with a narrow beam. Radar is a system that uses radio waves to determine the distance ( ranging ), direction ( azimuth and elevation angles ), and radial velocity of objects relative to the site.
Radar definition: 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.. See examples of RADAR used in a sentence.
radar. ( ˈreɪdɑː) n. 1. (Electronics) 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.
/ˈreɪdɑː (r)/ /ˈreɪdɑːr/ [uncountable] Idioms. a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they cannot be seen. They located the ship by radar. a radar screen. compare sonar. Extra Examples. Topics Transport by water c1, Transport by air c1. Oxford Collocations Dictionary.
RADAR definition: a system that uses radio waves to find out the position of something you cannot see. Learn more.
radar. From Longman Dictionary of Contemporary English ra‧dar /ˈreɪdɑː $ -ɑːr/ noun 1 [ countable, uncountable] a piece of equipment that uses radio waves to find the position of things and watch their movement → sonar The coastline can now be monitored by radar.
Radar is a way of discovering the position or speed of objects such as aircraft or ships by using radio signals.
