Eurodollars

These refer to deposits made in U.S. dollars at banks outside of the United States.  Traditionally these banks were in Europe (hence the name Eurodollar) but have expanded all across the globe.  These deposits are not regulated by the federal reserve.  They therefore, offer higher margins for the banks who take these deposits.  Additionally, the prefix “euro” can refer to any currency in a country where it is not the official currency.  Examples include the Euroyen.