radarnoun/ˈɹeɪdɑː/

• 1

  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.

  • They were able to find the enemy fleet using radar.
  • Although operational environments profoundly differ, both kinds of autonomous vehicles, groundcraft and aircraft, will still rely on conceptually the same sorts of sensors — cameras, radar and lidar — to perceive surroundings in real time.
• 2

  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.

• 3

  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.

  • The Ministry of Defence funded the development of an entirely new radar and improved avionics.
  • Evidence as to the audio monitor's reading is required to prove the [police] officer used the radar unit properly, and must be shown in order to secure a conviction for speeding when using radar.
• 4

  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.

  • Each of these aircraft has been upgraded with a new radar and a more powerful engine.
  • [T]he [depth] bombs must be tied to a grid of listening devices, radars and plotting instruments.
• 5

  Often preceded by a descriptive word: a natural (for example, in an animal such as a bat) or human-made detection method based on the analysis of reflected signals other than radio waves, as light waves or sound waves; (countable) an instance of this.

• 6

  A superior ability to detect something; an awareness, an intuition.

  • His sensitive radar for hidden alliances keeps him out of trouble.
  • Stanley: Geez, how'd ya know? / Happy: I got radar or something.

radarverb/ˈɹeɪdɑː/

• 1

  To use a radar apparatus (noun senses 1, 1.1, or 2) on (someone or something); to scan (someone or something) with, or as if with, radar.

  • This was no ordinary signal for help that Baby-John was radaring to outer space, but a call that had to be heeded, for he had just seen two hard guys go down for the final count— […]
  • I don't think men are born on this planet. I think men are born on the planet Pluto and they have them molecularly disassembled and radar-ed to the earth.