
1) Condensed matter physics 2) Finnish brand 3) Japanese pop music group
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https://www.crosswordclues.com/clue/supercell

A supercell is a thunderstorm that is characterized by the presence of a mesocyclone: a deep, persistently rotating updraft. For this reason, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms (supercell, squall line, multi-cell, and single-cell), supercells are the overall least common a...
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http://en.wikipedia.org/wiki/Supercell
[company] Supercell is a mobile phone network in the North Kivu owned by Supercell SPRL. Supercell was originally granted a regional 900/1800 GSM-licence for the eastern part of the Congo and startet services in July 2002. The concession was later upgraded to cover the whole country, but Supercell operates still a tiny wireless network, lim...
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http://en.wikipedia.org/wiki/Supercell_(company)
[crystal] In solid-state physics and crystallography, when describing crystal structure, a supercell is a repeating unit cell of the crystal that contains several primitive cells. In some cases, these primitive cells of the underlying crystal are perturbed so that the supercell becomes the new primitive cell. For example, in body-centered (...
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http://en.wikipedia.org/wiki/Supercell_(crystal)
[video game company] Supercell is a mobile game development company founded in June 2010 in Helsinki, Finland. Ilkka Paananen is the company`s CEO. The company`s debut game was Gunshine.net. In 2011, Supercell started developing games for mobile devices and has since then released three games: Clash of Clans, Hay Day, and Boom Beach. Clash ...
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http://en.wikipedia.org/wiki/Supercell_(video_game_company)

A thunderstorm with a persistent, rotating updraft. The rarest thunderstorm type, the supercell, produces the most violent weather including the most significant tornadoes, giant hail, deadly lightning and damaging microburst winds. The supercell thunderstorm is our forecasters' primary target. Also mesocyclone.
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http://www.tempesttours.com/tempest_tours_storm_glossary.html

A severe thunderstorm whose updrafts and downdrafts are in near balance allowing the storm to maintain itself for several hours. Supercells often produce large hail and tornadoes.
Found on
http://www.timeanddate.com/weather/glossary.html

A severe thunderstorm whose updrafts and downdrafts are in near balance allowing the storm to maintain itself for several hours. Supercells often produce large hail and tornados.
Found on
https://www.encyclo.co.uk/local/22280
No exact match found.