Radar
/rˈeɪˌdɑr/
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Definition
(noun) In full primary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing radio waves (usually microwaves) which are sent towards the object and which reflect off its surfaces; also, the field of study of this method.
Sentence Examples
The ship is not equipped with radar.
The boat was equipped with radar.
CEFR Practice Quiz
The air traffic controller tracked the approaching aircraft on the ____ screen.