From WordNet (r) 2.0 [wn]:
noun
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: {digital scanner}, {image scanner}]
3: a radar dish that rotates or oscillates in order to scan a broad area
4: a radio receiver that that moves automatically across some selected range of frequencies looking for for some signal or condition; "they used scanners to monitor police radio channels" [syn: {electronic scanner}]
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
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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