2P

2P may refer to:

Science

  • 2P/Encke, official designation of Comet Encke
  • 2p, an arm of Chromosome 2 (human)
  • 2p, an atomic orbital for electrons
  • Two-photon absorption
  • Two-photon excitation microscopy

Transportation

  • Airphil Express, a Philippines airline, IATA code 2P
  • LMS Class 2P 4-4-0, a British locomotive

Other

  • 2P, a 408mm artillery piece from the Soviet Union
  • 2p, a two pence British coin
  • 2P, rapper 2 Pistols
  • 2P reserves, proven reserves of fossil fuels
  • 2P, meaning "player 2" in fandoms which can include inverting a character's personality and appearance

See also

  • P2 (disambiguation)
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