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.
Definition of 'ESP'. ESP (iË es piË ) ESP is the teaching of English to students whose first language is not English but who need it for a particular job, activity, or purpose. ESP is an abbreviation for 'English for specific purposes' or 'English for special purposes'. ESP is an abbreviation for 'extra-sensory perception'.