noun
white hole
Astronomical term: a hypothetical region of spacetime that cannot be entered from the outside, but from which matter and light may escape. The theoretical opposite of a black hole.
ホワイトホールは、ブラックホールの時間反転解として理論的に存在が予測されている。
White holes are theoretically predicted to exist as time-reversed solutions of black holes.
Some cosmological theories regard the Big Bang itself as a gigantic white hole.