p.s.i. abbreviation - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of p.s.i. abbreviation from the Oxford Advanced American Dictionary

p.s.i.

abbreviation

NAmE//ˌpi ɛs ˈaɪ//

pounds per square inch (used for giving the pressure of tires, etc.)

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