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Lengua inglesa
radar
noun
1 a system for detecting the presence of distant objects, or determining one's own position, by transmitting short pulses of high-frequency radio waves and detecting the signals reflected back from the surface of any object in their path.
2 the equipment for sending out and receiving such radio waves.
[1940s: from ra dio d etecting a nd r anging]
noun
1 a system for detecting the presence of distant objects, or determining one's own position, by transmitting short pulses of high-frequency radio waves and detecting the signals reflected back from the surface of any object in their path.
2 the equipment for sending out and receiving such radio waves.
[1940s: from ra dio d etecting a nd r anging]
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