definition of
scan

[1] #1 scan v. examine minutely or intensely; "the surgeon scanned the X-ray". wn

[2] #2 scan v. [skim, rake, glance over, run down] examine hastily; "She scanned the newspaper headlines while waiting for the taxi". wn

[3] #3 scan n. the act of scanning; systematic examination of a prescribed region; "he made a thorough scan of the beach with his binoculars". wn

[4] #4 scan v. make a wide, sweeping search of; "The beams scanned the night sky". wn

[5] #5 scan n. [CAT scan] an image produced by scanning; "he analyzed the brain scan"; "you could see the tumor in the CAT scan". wn