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.
Definition of mini-black hole in US English:
mini-black hole
nounˌmɪnɪˌblakˈhəʊl
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.