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O2

From Wikipedia, the free encyclopedia

O2, O-2, o2, O2, O2, O2− or O2+ may refer to:

Science and technology

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  • O2 or dioxygen, the common allotrope of the chemical element oxygen
  • O2−, the ion oxide
  • O2, the ion superoxide
  • O+2, the ion dioxygenyl
  • O2+, doubly ionized oxygen
  • O2, an EEG electrode site according to the 10–20 system
  • SGI O2, a Unix workstation computer
  • UOC O2, institutional repository of the Open University of Catalonia
  • O2, the earliest defined spectral class for stars

Places

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Arts, entertainment, and media

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Film

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Music

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Albums

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Songs

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Other arts, entertainment, and media

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Businesses and organisations

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Vehicles and vessels

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Other uses

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See also

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