0 (in stories) a world that exists in addition to, and is like, the world that we know, but that is also different from it in important ways: --
He was a brilliant physicist who predicted the existence of parallel universes.
"The media is living in a parallel universe," said one adviser. "In the real world, people are noticing that things are improving."
The setting is a medieval English village called Wall, so named for the wall that separates the villagers from Stormhold, the parallel universe just beyond it.
A new theory suggests a parallel universe triggered the Big Bang.
Some physicists argue that our universe is only one of as many as 10,500 parallel universes, one in which the laws of physics happen to be conducive to our existence.
Metropolis and Gotham City are the parallel universes inhabited by D. C. Comics' Superman and Batman.
Officials aim to create a "parallel universe" inside the prison, where inmates engage full-time in activities similar to those in the outside world.