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2 definitions found
 for scanner
From WordNet (r) 3.0 (2006) :

  scanner
      n 1: someone who scans verse to determine the number and
           prosodic value of the syllables
      2: an electronic device that generates a digital representation
         of an image for data input to a computer [syn: scanner,
         digital scanner, image scanner]
      3: a radar dish that rotates or oscillates in order to scan a
         broad area
      4: a radio receiver that moves automatically across some
         selected range of frequencies looking for some signal or
         condition; "they used scanners to monitor police radio
         channels" [syn: scanner, electronic scanner]

From The Free On-line Dictionary of Computing (18 March 2015) :

  scanner
  
     1. An input device that takes in an optical image and
     digitises it into an electronic image represented as binary
     data.  This can be used to create a computerised version of a
     photo or illustration.
  
     A scanner may be linked to optical character recognition
     software allowing printed documents to be converted to
     electronic text without having to type them in at a keyboard.
  
     2. lexical analyser.
  
     (1995-02-14)
  

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