What does PSI stand for?

The list of PSI abbreviation meanings.

Stands For|589Abbreviated As|0Related|0

589 entries under topic. ×

18
Pounds Per Square Inch(Definition, Sealing, Mechanical sealing)
7
Proliferation Security Initiative(Military)
5
Personnel Security Investigation(Army, Military)
5
Personnel Security Investigations(Military)
4
Product Support Integrator(Military)
2
Process to Support Interoperability(Military)
1
President of the Service Institute(Armed Forces, Royal military, Air Force)
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APASmart Define. (2017). psi. Retrieved September 29, 2026, from http://smartdefine.org/psi/abbreviations/f/military
ChicagoSmart Define. 2017. "psi" http://smartdefine.org/psi/abbreviations/f/military (accessed September 29, 2026).
HarvardSmart Define 2017, psi, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/psi/abbreviations/f/military>.
MLASmart Define. "psi" 17 November 2017. Web. 29 September 2026. <http://smartdefine.org/psi/abbreviations/f/military>