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white hole

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Definition of white hole in English:

noun

Astronomy
A hypothetical celestial object which expands outwards from a space-time singularity and emits energy, in the manner of a time-reversed black hole.
Example sentences
  • And just as Humphreys' model has the universe expanding out of a white hole (a black hole running in reverse) so too does their paper!
  • Even though both black holes and white holes are plausible scenarios according to general relativity, there is still a crucial difference.
  • The problem is with the amount of entropy in a white hole.

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