Definitions for "POUNDS PER SQUARE INCH"
A measure of pressure expressed in pounds of force exerted on a square surface area measuring one inch by one inch. In SI, most pressures are expressed in kilopascals (kPa).
Measurement of pressure (e.g., pump pressure, nozzle pressure, friction loss in hose, pressure loss or gain due to elevation).
PSI - Pounds per square inch. ( 099)
Keywords:  exerted, compressed, force, per, air
Force per unit area exerted by compressed air.