"KIDS HOME STUDY REFERENCE DICTIONARY HOME WORD: radar

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ra·dar  audio 
(rdär)  See the pronunciation key 

NOUN:
  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.
ETYMOLOGY:
ra(dio) d(etecting) a(nd) r(anging)
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