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CN

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CN, Cn, cn and other variants may refer to:

Companies

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Media and entertainment

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Places

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Mathematics, science, and technology

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Biology

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Chemistry

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  • CN gas, a substituted acetophenone used as a riot control agent
  • Copernicium, symbol Cn, a chemical element
  • Cyanide, any chemical compound that contains a carbon atom triple-bonded to a nitrogen atom, -CN
  • Cyanogen, a colorless, toxic gas with a pungent odor, (CN)2

Computing

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Mathematics

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Other uses in mathematics, science, and technology

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  • Carrier-to-noise ratio C/N, the signal-to-noise ratio of a modulated signal
  • Curve number, a parameter used in hydrology for predicting direct runoff or infiltration from rainfall
  • cN, abbreviation for centinewton, a force equal to one hundredth of a newton
  • Classical nova, a type of cataclysmic variable star

Other uses

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See also

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