What is the meaning of scan?

noun

• The act of scanning; systematic examination of a prescribed region.
  • usage: "he made a thorough scan of the beach with his binoculars"
• An image produced by scanning.
  • usage: "he analyzed the brain scan"; "you could see the tumor in the CAT scan"
  • synonyms: CAT scan

verb

• Examine minutely or intensely.
  • usage: "the surgeon scanned the X-ray"
• Examine hastily.
  • usage: "She scanned the newspaper headlines while waiting for the taxi"
  • synonyms: skim, rake, glance over, run down
• Make a wide, sweeping search of.
  • usage: "The beams scanned the night sky"
• Conform to a metrical pattern.
• Move a light beam over; in electronics, to reproduce an image.
• Read metrically.
  • usage: "scan verses"
• Obtain data from magnetic tapes.
  • usage: "This dictionary can be read by the computer"
  • synonyms: read