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radar

  • noun
  • ra·dar
  • /ˈɹeɪdɑː/

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

Other meanings

  1. In full secondary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing signals transmitted by the object in response to radio waves sent towards the object.

  2. An installation of the apparatus for operating one of the above detection systems.

Synonyms

  • microwave radar

A kind of

  • measuring instrument

Kinds of radar

  • early warning radar
  • three-dimensional radar
  • weather radar

Example sentences

  • “I'm back on their radar again.”

    Tatoeba · shekitten · CC0

Where this comes from

This definition is adapted from “radar” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.