[] a pattern of thick and thin lines that is printed on things that you buy in a shop/store. It contains information that a computer can read 条形码；条码◆The cashier uses a light pen to read the bar codes. 收银员使用光笔阅读条形码。◆a bar code reader 条形码阅读器SYNUPC ➡ picture at packaging ⨁to read / scan a bar code 阅读／扫描条形码▸ˈbar ˌcoding