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QR code

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Trademark.
  1. matrix bar code
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Origin of QR code

First recorded in 1990–95; abbreviation of quick-response code
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for qr code

QR Code

noun
  1. trademark a type of bar code that can be read both horizontally and vertically, allowing large amounts of information to be encoded in it
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Word Origin

C20: Q (uick) R (esponse)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012