mini-holen.
/ˈmɪnɪhəʊl/, U.S. /ˈmɪniˌ(h)oʊl/ 1. Astronomy. = mini-black hole n.
ΚΠ
1974 Sci. Amer. Dec. 43/2 There are probably supermassive holes and possibly miniholes as well.
1983 P. Davies Edge of Infinity vi. 128 Although the search for primordial mini-holes is daunting, the pay-off is considerable. Not only would one of the most dramatic scientific predictions of the century be confirmed..but our knowledge of the primeval cosmos would be enhanced enormously.
1999 Financial Times (Nexis) 22 May 2 A mini hole, however, would not look black. It would give off radiation through a process first described by Stephen Hawking.
2. Meteorology. A highly localized region of temporary ozone depletion in the upper atmosphere.
ΚΠ
1988 J. Gribbin Hole in Sky vi. 113 During August 1987 smaller features, dubbed ‘mini holes’ appeared just outside the region of polar night. Each mini hole lasted for a few days and then disappeared.
1991 Toronto Star (Nexis) 26 Jan. a12 We have an indication, not a proof, that these ‘mini-holes’ are indeed the first sign of a depletion of the ozone layer caused by manmade activities.
1998 Geophysical Res. Lett. 25 301 (title) An interhemispheric comparison of ozone minihole climatologies.
This is a new entry (OED Third Edition, March 2002; most recently modified version published online March 2022).
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n.1974- mechanical equivalent
- mechanical equivalent of heat
- mechanical equivalent of light
- mechanical faculty
- mechanical impedance
- mechanical inspiration
- mechanical mixture
- mechanical pencil
- mechanical power
- mechanical printer
- mechanical pulp
- mechanical rights
- mechanical stoker
- mechanical tissue
- mechanical twin
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- mechanical wood
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- mechanical zero
- mechanical-minded
- mechanicalise
- mechanicalism
- mechanicalist
- mechanicality
- mechanicalization