Definition of bar code
- …they now plan to analyze each fish sample by decoding a certain tiny piece of DNA that can serve as a unique bar code for the species.
- —Christen Brownlee
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bar code.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a group of thick and thin lines that is placed on a product so that a computer can get the price of the product and other information about it
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