PSA(redirected from prostate-specific antigen)
Also found in: Dictionary, Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.
Security Industry and Financial Markets Association
Formerly known as the Public Securities Association, a professional organization for banks, broker-dealers, and other organizations that underwrite securities. It serves as a lobbying group and provides education and training to members and non-members. It maintains offices in New York, Washington DC, and London, with affiliated offices in Hong Kong and other locations.