e-Dollar is an informal name given to a fully digital version of the US Dollar. It's really not a new concept, since the dollar itself has been almost a fully digital currency since the end of the gold standard. Most US dollars don't actually exist in paper or metal.
Acronym for Federal Reserve, USA's highest monetary authority.
The Federal Reserve is USA's highest monetary authority. The FED, as it's popularly called, is in charge of generating more currency, establishing monetary policy and protecting the stability of the US dollar through various financial instruments. The FED is a popular target of criticism by proponents of cryptocurrencies.