Submitted by György Chityil ... on Fri, 01/19/2018 - 18:32 Hierarchy: InitialismDescription: Pounds per square inch {{qualifier|an imperial unit of pressure}}Ngram: psiNgram Text: psiSource: WiktionaryIssue: 0Wiktionary tag: qualifierNgram Count: 1Wikokit WikiText ID: 1109349