. . "PS" . . . "PSI"@en . . . . "Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2"^^ . "psi" . . . . . "[psi]"^^ . "Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2" . "psi" . . "6894.75789"^^ .