#1 scan v. examine minutely or intensely; "the surgeon scanned the X-ray". wn
#2 scan v. [skim, rake, glance over, run down] examine hastily; "She scanned the newspaper headlines while waiting for the taxi". wn
#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 scan v. make a wide, sweeping search of; "The beams scanned the night sky". wn
#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
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