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English definition of “bar code”

bar code

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]
(Definition of bar code from the Cambridge Business English Dictionary © Cambridge University Press)
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