DEFINITION of 'Regulation E'. A regulation set forth by the Federal Reserve. Regulation E outlines the rules and procedures for electronic funds transfers (EFTs) and outlines guidelines for those who sell and issue electronic debit cards. Rules pertaining to consumer liability for unauthorized card usage fall under this regulation as well. Next Up.
Essaim. Essaim is a French military reconnaissance microsatellite constellation. Its main purpose is to collect and map signals intelligence across the world. The DGA describes it as a vacuum cleaner for [radio] waves.
Word Origin & History. pedestrian 1716, prosaic, dull (of writing), from L. pedester (gen. pedestris) plain, prosaic (sense contrasted with equester on horseback), from pedes one who goes on foot, from pes (gen. pedis) foot (see foot). Meaning going on foot is first attested 1791 in Eng.