virtual reality

noun3

1. •
   A computer technology that simulates a real or imagined environment so that the user can interact with it as if physically present.
2. •
   (old-fashioned) A text adventure or multi-user dungeon.

   • In the virtual reality, text is all there is. If you see `Blackbriar chuckles.' then that is the closest you're going to get to a real chuckle in this environment. — 1993
3. •
   (no longer used) Something conjectured which is effectively coming into existence.