bar code
- noun
- /bɑr koʊd/
- Specialized
- The cashier scanned the bar code on the product to check its price.
- bar code scanner
Examples
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Each item on the shelf has a bar code that helps the store track inventory.
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So this is how a bar code scanner works.
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Products with bar codes that start with 48 are made in the Philippines.
Blog text (14) -
This is basically a device that you can use to scan UPC codes, bar codes around your kitchen.
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Wal-Mart obtains sales information at the cash register using a bar code scanner.
Academic text (2004) -
"The app, available for both iPhones and Androids, allows users to scan a product's bar code, immediately see nutrition information, and get suggestions for a healthier alternative.
Blog text (32) -
She must have made the teenage cashier nervous; he ran the merchandise past the bar-code scanners as fast as humanly possible.
Fiction book (2002) -
A female loader slaps a large bar code label on the container, scans it, then pulls the container across a belt of rollers onto a larger truck.
Fiction book (2000) -
You can use your phone app to scan the bar code for more information about the product.
Synonyms
A way of using signs, letters, or numbers to hide a message
A pattern of lines printed on products that a scanner reads to identify them
A set of black bars and numbers on a product package scanned in stores
How Informative
Surface Forms
Morphology
The term builds directly from 'bar' (a stripe) + 'code' (an identifying label): a barcode is an identifying code represented by bars, so a learner who knows both words can infer it denotes an identifying marker. The DNA usage is a metaphorical extension of the same identifying-code concept but remains compositionally transparent and cross-linguistically recognizable.
Etymology
The noun bar code comes from the printed picture of black vertical bars that form a machine 'code'. Scanners read those lines to 'identify' items and give their price, so the name now means the patterned label on products.