pound per square inch

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pound per square inch

[′pau̇nd pər ¦skwer ′inch]
(mechanics)
A unit of pressure equal to the pressure resulting from a force of 1 pound applied uniformly over an area of 1 square inch. Abbreviated psi.
References in periodicals archive ?
for example, the 5 pounds per square inch (psi) overpressure zone for a 1-MT bomb would likely experience at least 3.