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bar code UK US noun [C] COMMERCE, IT
► a small rectangular pattern of thick and thin black lines printed on a product, or on its container, so that the details of the product can be read by and recorded on a computer system: »
Bar codes can be scanned by optical scanners known as bar code readers.
bar coding noun [U]
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Bar coding is essential for efficient inventory management.
Financial and business terms. 2012.