Ph Information
pH is a measure of acidity or alkalinity in chemistry.
PH, ph, pH, and Ph may also refer to:
Sciences
- PH (complexity), the union of all people classes in the polynomial hierarchy in computational complexity theory
- Ph.D, Philosophiæ Doctor (Latin)
- Phenyl group, either -Ph or Φ, highly-stable and aromatic hydrocarbon unit found in many organic compounds
- phot, or ph, a measurement of illuminance (photometry)
- pico henry, an SI Unit of electrical inductance
- Pleckstrin homology domain, a part of many proteins which bind phosphoinositides with high affinity
- Pulmonary hypertension, a medical condition
- Soil pH is a measure of soil acidity or soil alkalinity.
Aviation
- PH (Papa, Hotel), Aircraft Registration prefix for the Netherlands
- Polynesian Airlines' IATA airline designator
- Transavia.com Denmark's IATA airline designator
See also
- .ph, the Philippines' Internet country code top-level domain
- pʰ
- Partido Humanista, "Humanist Party" in Spanish
- Paul Harris school, Venezuelan bilingual school in Caracas
- PH, the Philippines' ISO country code
- Ph (digraph), a common digraph that represents the phoneme /f/ (voiceless labiodental fricative) in phonetics
- Ph protocol, an early web database search described by RFC 2378
- phi (letter), the Greek letter (φ)
- Poul Henningsen Danish writer and designer referred to as PH in Denmark
- The Legend of Zelda: Phantom Hourglass, a video game
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