Word by Word Definitions. persistentplay. : existing for a long or longer than usual time or continuously: such as. : retained beyond the usual period. : continuing without change in function or structure.
Federal Bureau of Investigation (FBI), principal investigative agency of the federal government of the United States. The bureau is responsible for conducting investigations in cases where federal laws may have been violated, unless another agency of the federal government has been specifically delegated that duty by statute or executive fiat.
United States Government - Independent Agencies. Independent Agencies of the Unites States government are tasked with administering the law as regarding specific areas such as the environment, social security, and veteran affairs. These Agencies are expert in the area they manage and are generally headed by a Board or Commission, while a few, such as the EPA, are headed by a single Administrator.