radar
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ra·dar
(rā′där)n.
Idiom: 1. A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of very high frequency radio waves reflected from their surfaces.
2. The equipment used in such detection.
on (one's) radar/radar screen
In one's conscious awareness as a possibility or as an existing phenomenon: The governor said that running for president was not even on her radar screen.
[ra(dio) d(etecting) a(nd) r(anging).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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. The direction of the reflected beam and the time between transmission and reception of a pulse determine the position of the object. Former name: radiolocation
2. (Electronics) the equipment used in such detection
[C20 ra(dio) d(etecting) a(nd) r(anging)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ra•dar
(ˈreɪ dɑr)n.
1. a device or system for determining the presence and location of an object by measuring the direction and timing of radio waves.
2. a means of awareness; perception: lobbyists working under the media's radar.
[1940–45, Amer.; ra(dio)d(etecting)a(nd)r(anging)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ra·dar
(rā′där)1. A method of detecting distant objects and determining their position, speed, 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 doing this.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
radar
A radio detection device that provides information on range, azimuth, and/or elevation of objects.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
radar
an acronym for RAdio Detecting And Ranging: a method and the equipment used for the detection and determination of the velocity of a moving object by reflecting radio waves off it.
See also: Aviation-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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| Noun | 1. |  radar - measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objectsdish aerial, dish antenna, saucer, dish - directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation Doppler radar - radar that uses the Doppler shift to measure velocity early warning radar - a radar that is part of an early warning system measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something cathode-ray oscilloscope, CRO, oscilloscope, scope - electronic equipment that provides visual images of varying electrical quantities pulse generator - a generator of single or multiple voltage pulses; usually adjustable for pulse rate 3d radar, three-dimensional radar - radar that will report altitude as well as azimuth and distance of a target wave guide, waveguide - a hollow metal conductor that provides a path to guide microwaves; used in radar weather radar - radar that is able to detect clouds and precipitation |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
راداررادار: جهاز رَصد ومُراقَبَة
radar
radar
tutka
radar
radar
ratsjá, radar
レーダー
레이더
radaras
radar
radar
radar
เรดาห์
hệ thống radar
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
radar
[ˈreɪdɑːr] n → radar m
to be under the radar (fig) (= go undetected) → ne pas être détecté(e)
to do sth under the radar (without being detected) → faire qch sans être détecté(e)
to be under the radar (fig) (= go undetected) → ne pas être détecté(e)
to do sth under the radar (without being detected) → faire qch sans être détecté(e)
modif [detector, image, operator, picture, signal, system] → radar inv radar screen, radar trapradar screen n → écran m radar
to vanish from radar screens (lit) [aircraft] → disparaître des écrans radar
The aircraft disappeared from radar screens → L'avion a disparu des écrans radar. (fig) [person] → disparaître de la circulationradar trap n → contrôle m radar inv
to be caught in a radar trap → se faire flasher par un radar
to vanish from radar screens (lit) [aircraft] → disparaître des écrans radar
The aircraft disappeared from radar screens → L'avion a disparu des écrans radar. (fig) [person] → disparaître de la circulationradar trap n → contrôle m radar inv
to be caught in a radar trap → se faire flasher par un radar
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
radar
n → Radar nt or m
radar
in cpds → Radar-;radar beacon
n → Radarbake f, → Radarfunkfeuer nt
radar operator
n → Bediener(in) m(f) → eines/des Radargerätes
radar scanner
n → Rundsuchradargerät nt
radar station
n → Radarstation f
radar trap
n → Radarfalle f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
radar
(ˈreidaː) noun a method of showing the direction and distance of an object by means of radio waves which bounce off the object and return to their source.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
radar
→ رادار radar radar Radar ραντάρ radar tutka radar radar radar レーダー 레이더 radar radar radar radar радар radar เรดาห์ radar hệ thống radar 雷达Multilingual Translator © HarperCollins Publishers 2009