See also: Appendix:Variations of "psa" English Noun PsA (uncountable) (medicine) Abbreviation of psoriatic arthritis. Anagrams SPA, APS, PAS, Spa, SAP, sap, APs, spa, s.ap., asp, pas, Pas, ASP, SpA, PAsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads