Radar Definition

rādär
noun
Any of various systems or devices using reflected radio waves to locate fixed objects and track moving ones: a radar system typically consists of a transmitter, receiver, and display screen, and is used in navigation, air traffic control, meteorology, mapping, etc.
Webster's New World
The equipment used in such detection.
American Heritage
A special ability to perceive, recognize, or find a particular kind of thing, behavior, etc.
A teacher's radar for plagiarism.
Webster's New World
Synonyms:
  • radiolocation
  • radio detection and ranging
  • microwave radar
  • photoelectricity
  • ra dio d etecting a nd r anging
  • radio locator (British)
  • radio detecting and ranging
  • awacs
  • loran
  • Multi-Function Array Radar (MAR)
  • Missile Site Radar (MSR)
  • teleran
abbreviation

Abbreviation of radio detection and ranging.

Wiktionary

Other Word Forms of Radar

Noun

Singular:
radar
Plural:
radars

Idioms, Phrasal Verbs Related to Radar

  • on (one's) radar
  • on (or off) the (or someone's) radar screen
  • under the radar screen

Origin of Radar

  • ra(dio) d(etecting) a(nd) r(anging)

    From American Heritage Dictionary of the English Language, 5th Edition

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