PAH

PAH or Pah may refer to:

Chemistry

 * Polycyclic aromatic hydrocarbon, one of a class of chemical compounds, organic pollutants
 * PAH world hypothesis, hypothesis that proposes that the use of polycyclic aromatic hydrocarbons was a means for the origin of life
 * Polyallylamine hydrochloride, a polyelectrolyte used in polymer sheets
 * Polyanhydrides, a class of biodegradable polymers
 * Photoacid, where H indicates an H atom lost by an acid

Medicine

 * Para-aminohippurate, a substance used in the measurement of blood flow in the kidneys
 * PAH clearance, Para-aminohippuric acid clearance, a measurement of renal plasma flow
 * Paradoxical adipose hyperplasia, a potential complication of cryolipolysis
 * Phenylalanine hydroxylase, an enzyme involved in breaking down phenylalanine
 * Primary alveolar hypoventilation, a condition of inadequate air movement in the lungs
 * Pulmonary arterial hypertension, a condition of elevated blood pressure in the pulmonary artery

Organizations

 * Plataforma de Afectados por la Hipoteca, a Spanish housing rights organization
 * Polish Humanitarian Action, a Polish non-governmental organisation (Polish: Polska Akcja Humanitarna)
 * Russian Academy of Sciences, Russian: Российская Академия Наук (РАН)
 * National Weather Service Paducah, Kentucky (WFO ID PAH)

People

 * Pah Wongso, born Victor Wijnhamer, Jr., (Chinese: 伯王梭; pinyin: Bó Wángsuō), an Indo social worker

Places

 * Pan-American Highway
 * Pah, Gujarat, a village and former non-salute Rajput princely state in Gujarat, INdia
 * Pah Homestead, a historic home in Hillsborough, Auckland, New Zealand
 * Barkley Regional Airport, Paducah, Kentucky, U.S., IATA airport code PAH
 * Pah-Ute County, Arizona Territory

Other

 * Pah, the lunar deity in Pawnee mythology
 * Pah Wraith, in the fictional Star Trek universe