Psi (disambiguation)

This disambiguation page lists articles associated with the same or a similar title.

•  Psi (Greek letter): The 23rd letter of the Greek alphabet, written as $\Psi$ (upper-case) and $\psi$ (lower-case). ^[e]
•  Pneumonia severity index: A clinical prediction rule to estimate the probability of complications in patients with community acquired pneumonia. ^[e]
• Public sector information: Information generated by actors within the public sector of an economy. ^[e]
• Pollution Standards Index: Add brief definition or description
•  psi (unit): A unit of pressure in the U.S. customary units and defined as the pressure exerted by a force of one pound-force applied to an area of one square inch. ^[e]