- 1a device for examining something or recording something using light, sound, or X-rays The identity cards are examined by an electronic scanner.
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2(computing) a device that copies pictures and documents so that they can be stored on a computer a document scanner see flatbed scanner
- 3a machine used by doctors to produce a picture of the inside of a person's body on a computer screen a body scanner
- 4a piece of equipment for receiving and sending radar signals
Check pronunciation: scanner