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English definition of “scan”

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scan

verb [I/T]  /skæn/ (-nn-) us  
to examine something carefully: [I] This technique is used to scan for defective genes. If an image or text on paper is scanned into a computer, it is changed into electronic information by a special device: [T] A little hand-held device beeps as soon as it has scanned a bar code. If you scan a text you read it quickly: [T] I scanned a few pages of the book and thought it looked interesting.

scan

noun [C]  /skæn/ us  
the act of looking at or through something carefully or quickly: A quick scan of my calendar shows that I’m pretty busy this week. a security scan of passengersbags A scan is an examination of the inside of something, such as part of the body or a package, using a computerized device to produce an image of what cannot be seen with the eyes: a medical scan of the head
(Definition of scan from the Cambridge Academic Content Dictionary © Cambridge University Press)
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