barcode reader
US /ˈbɑːr.koʊd ˌriː.dɚ/
UK /ˈbɑːr.koʊd ˌriː.dɚ/
1.
an electronic device that can read and output barcodes
:
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The cashier used a barcode reader to scan the items.
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Many retail stores rely on barcode readers for inventory management.