From Longman Business Dictionary
bar codeˈbar code [countableC]COMMERCE a series of lines printed on products sold in a shop that can be read by a machine connected to a computer to give the price, keep a record of the sale etcThe scanner at the checkout recognises the bar code and charges the correct amount.
—bar coding noun [uncountableU]The use of bar coding has meant that restocking is done automatically.
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