2. Existing or occurring on computers or on the internet: "You can browse anytime through the stores on the internet and do virtual shopping for books, clothing, CDs, and many other items."
In the virtual reality cooking program on TV, she watched the preparation of her favorite victual.
2. In physics, used to describe a particle whose existence is suggested to explain observed phenomena but is not proven or directly observable.
3. With computer technology, simulated by a computer for reasons of economics, convenience, or performance.
4. With computer technology, used to describe a technique of moving data between storage areas or media to create the impression that a computer has a storage capacity greater than it actually has.
There are several ways of implementing a virtual private network (VPN) but the data will usually be encrypted to prevent them from being read as they pass across the public parts of the internet.