RADAR

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does radar mean? 

• RADAR (noun)
  The noun RADAR has 1 sense:

1. measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects

  Familiarity information: RADAR used as a noun is very rare.

 Dictionary entry details 

• RADAR (noun)

Sense 1

Meaning:

Measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects

Classified under:

Nouns denoting man-made objects

Synonyms:

microwave radar; radar; radio detection and ranging; radiolocation

Hypernyms ("radar" is a kind of...):

measuring device; measuring instrument; measuring system (instrument that shows the extent or amount or quantity or degree of something)

Meronyms (parts of "radar"):

dish; dish aerial; dish antenna; saucer (directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation)

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)

wave guide; waveguide (a hollow metal conductor that provides a path to guide microwaves; used in radar)

Hyponyms (each of the following is a kind of "radar"):

Doppler radar (radar that uses the Doppler shift to measure velocity)

early warning radar (a radar that is part of an early warning system)

3d radar; three-dimensional radar (radar that will report altitude as well as azimuth and distance of a target)

weather radar (radar that is able to detect clouds and precipitation)

 Context examples 

Radar scientists will capture high-resolution images that could show its surface features.

(Biggest Asteroid Ever Detected Flies Past Earth, The Titi Tudorancea Bulletin)

Key to understanding the nature of the channels was the way Cassini's radar signal reflected off the bottoms of the features.

(Cassini Finds Flooded Canyons on Titan, NASA)

If you need to make a transaction, you will keep it under the radar and strictly confidential.

(AstrologyZone.com, by Susan Miller)

From the same radar data and ice cores that had been collected nearby, MacGregor and his colleagues determined that the ice in the area was at least 79,000 years old.

(NASA Finds Possible Second Impact Crater Under Greenland Ice, NASA)

Previous radar and imaging studies of the Moon, whose polar thermal environments are very similar to those of Mercury, found only patchy, shallow ice deposits.

(The Moon and Mercury May Have Thick Ice Deposits, NASA)

The resulting radar images will show the real size of Florence and also could reveal surface details as small as about 30 feet (10 meters).

(Large Asteroid to Safely Pass Earth on Sept. 1, NASA)

A NASA-developed airborne imager called a synthetic aperture radar took a detailed look at volcanoes in Central and South America during an Earth science study in late April and early May 2014.

(NASA airborne research focuses on Andean volcanoes, NASA)

Nonetheless, its close approach to Earth is an opportunity to test the ability of a growing global observing network to communicate and coordinate its optical and radar observations in a real scenario.

(Asteroid Tracking Network Observes Close Approach, NASA)

MistNet is based on neural networks for images and includes several architecture components tailored to the unique characteristics of radar data.

(Using artificial intelligence to track birds' dark-of-night migrations, National Science Foundation)

The study's authors cross-referenced temperatures suggestive of ice with other data, such as reservoirs of ice detected by radar or seen after meteor impacts.

(NASA's Treasure Map for Water Ice on Mars, NASA)