[] a device that uses a narrow line of strong light for reading the information on sth such as a credit card, bar code , etc.扫描器◆The identity cards are examined by an electronic scanner.身份证用电子扫描器进行检查。◆Busy shoppers should check their price scanner receipts for errors.时间紧的购物者应该核对一下收银条看是否有错。➡ picture at store () a machine for changing a document, picture, etc. into a form that can be stored or processed on a computer扫描仪◆a document scanner文本扫描仪➡ picture at office flatbed scanner