Definition for QR

1. (Quick Release) A feature that allows detaching a cable, clamp, or other connecting element quickly and easily.  2. (Quick Response code) A type of two-dimensional barcode often containing digital data for a location, identification, or tracking that point to a website or application. QR codes are commonly used to make it easier for mobile device users so that they do not need to type in long string of text or complicated URLs.

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