QR code Syllabification: (QR code)Definition of QR code noun trademark a machine-readable code consisting of an array of black and white squares, typically used for storing URLs or other information for reading by the camera on a smartphone: they were the first retailer here to offer QR codes in their advertisingOrigin: 1990s: abbreviated form of quick response codeQR code in other Oxford dictionaries Definition of QR code in the British & World English dictionary
