Extended Reality
Formal
A term refers to all real-and-virtual combined environments and human-machine interactions generated by computer technology and wearables. The levels of virtuality range from partially sensory inputs to immersive virtuality also called VR.
Practical
An increasingly popular initialization, XR is used as an umbrella term to refer to both augmented and virtual reality, where the X really acts as a variable to substitute any flavour of computer-assisted visual modification to reality.
