a matrix bar code that is read by photographing it with the camera of a smartphone or other mobile device that is equipped with a bar-code reader: Scan the QR code in our print ads to link to special offers on our website.
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. 2019
trademark a type of bar code that can be read both horizontally and vertically, allowing large amounts of information to be encoded in it
Word Origin for QR Code
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