The document introduces several new terms related to virtual reality experiences, including: 1. Opture - Media that is interactive only through head and/or gaze tracking. 2. Countergaze - The experience of having what you are watching also watching you. 3. Stortion - Subject to object rotation transfer, a technique for examining virtual objects by rotating them. It also defines terms like epikinetic related to the side effects of motion, beheld for shots taken through a head-mounted display, watchline to describe paths through immersive films, and fenestragraph for writing or creating images within windows in a virtual space.