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scanner - 4 dictionary results

scan⋅ner

[skan-er]
–noun
1. a person or thing that scans.
2. optical scanner. See under optical scanning.
3. Photography. any device for exposing an image on film, a sensitized plate, etc., by tracing light along a series of many closely spaced parallel lines.
4. (in aerial photography) a device for estimating the ratio of aircraft speed to aircraft altitude.
5. a photoelectric device for scanning a picture to determine automatically the density of the hue or value in each area for transmission by wire or radio or for preparation of color process printing plates.
6. a computer-aided electronic system using photoelectric cells to separate copy, as color illustrations, into its primary colors, correct color copy, and produce a set of color separations ready for proofing or printing.
7. Radio. a radio receiver, used esp. by police, firefighters, and the press, that continuously tunes to preselected frequencies, broadcasting any signal that it detects.
8. Medicine/Medical, Biology. a device for examining a body, organ, tissue, or other biologically active material.


Origin:
1550–60; scan + -er 1
scan·ner   (skān'ər)   
n.  
  1. One that scans.
  2. A receiver that continuously broadcasts signals it detects from specified radio frequencies: heard about the robbery over the police officer's scanner.
  3. An optical scanner.
  4. A device, such as a CAT scanner or PET scanner, for observing internal organs, tissues, and other parts of the body,

Main Entry: scan·ner
Pronunciation: 'skan-&r
Function: noun
: a device (as a CAT scanner) for making scans of the human body
Language Translation for : scanner
Spanish: escáner,
German: die Drehantenne,
Japanese: 走査機

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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