U.S. currency held in banks outside the United States, mainly in Europe, and commonly used for settling international transactions. Some securities are issued in Eurodollars-that is, with a promise to pay interest in dollars deposited in foreign bank accounts. These securities are not registered with the Securities and Exchange Commission, and because there are fewer regulatory delays and costs in the Euromarket, Eurodollar bonds generally can be sold at lower than U.S. interest rates.