Extended reality (XR)Extended reality (XR) is the umbrella term for technologies … is the umbrella term for technologies that combine digital content with a person’s perception of the world, covering virtual realityVirtual reality (VR) replaces a person’s surroundings entire… More, augmented reality, mixed reality, and immersive technologies still to come. It is best understood as a spectrum: at one end digital content is layered onto the real environment, and at the other the real environment is replaced entirely.
Sources: XRSI Standard XR Definitions (XR-001); ETSI eXtended Reality; Unity Glossary; SSH Healthcare Simulation Dictionary, 3rd ed.