PX

PX or px may refer to:

In business

 * PX Index, index of the Prague Stock Exchange
 * Air Niugini (IATA airline code PX)
 * Part exchange, a type of contract
 * Post exchange, a store operated by the Army and Air Force Exchange Service on US Army posts
 * Praxair (stock symbol PX)
 * Power exchange, the entity that operates an electricity market through which electricity is traded
 * Phone Number
 * People Experience, the rebranding of Human Resources (HR), reflecting a focus on putting people and their experiences first

Medicine

 * Medical prescription (a misprint of Rx)
 * Medical procedure, a Prognosis or Physical Exam
 * Patient experience

Chemistry

 * p-Xylene (Paraxylene), an aromatic hydrocarbon, based on benzene with two methyl substituents, of which PX is the industrial symbol.
 * Peroxidase
 * Pyroxenes, commonly abbreviated to Px, are a group of important rock-forming inosilicate minerals
 * Protein crystallography, the study of protein crystals to determine the molecular structure of proteins

Other uses

 * Pixel, in digital displays
 * PX clade, a taxonomic group of stramenopiles algae that includes Phaeophyceae and Xanthophyceae
 * Operation PX, a planned Japanese biological attack on the United States in World War II
 * Chi Rho ☧ (only if misspelt) – a Christian monogram formed by superimposing the Greek letters Χ (chi) and P (rho).
 * Pedro Ximénez, a grape used in the making of sweet sherries and wines from Montilla-Moriles