| Noun | 1. | Financial Management Service - the federal agency in the Treasury Department that manages the government's disbursement and collection systems and provides central accounting and financial reporting Department of the Treasury, Treasury Department, United States Treasury, Treasury - the federal department that collects revenue and administers federal finances; the Treasury Department was created in 1789 bureau, federal agency, government agency, agency, office, authority - an administrative unit of government; "the Central Intelligence Agency"; "the Census Bureau"; "Office of Management and Budget"; "Tennessee Valley Authority" |