Scanner - Definition

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]