PH (disambiguation)

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pH is a measure of acidity or alkalinity.

PH, ph, pH, and Ph may also refer to:

Arts and media[edit]

Aviation[edit]

Places[edit]

  • Port Harcourt, (alternative name of the city)
  • Philippines (ISO country code PH)
    • .ph, the Philippines' Internet country code top-level domain

Science and technology[edit]

Chemistry[edit]

  • Phenyl group, either -Ph or Φ, highly-stable and aromatic hydrocarbon unit found in many organic compounds
  • Pleckstrin homology domain, a part of many proteins which bind phosphoinositides with high affinity

Computing[edit]

  • .ph, the Philippines' Internet country code top-level domain
  • Ph protocol, an early web database search for CCSO Nameserver described by RFC 2378

Physics[edit]

  • Phot, or ph, a measurement of illuminance, in photometry
  • Picohenry, an SI Unit of electrical inductance

Other sciences[edit]

Other uses[edit]

See also[edit]

  • Phi (φ), a letter of the Greek alphabet