Definition of mini-black hole in English:

mini-black hole

noun

Astronomy
  • A hypothetical black hole of very small size formed by compression of matter during the early stages of the universe and believed to evaporate over time with the emission of radiation.

Origin

1970s; earliest use found in The Lima News. From mini- + black hole.

Pronunciation

mini-black hole

/ˌmɪnɪˌblakˈhəʊl/