"A segment of the financial market in which financial instruments with high liquidity and very short maturities are traded. The money market is used by participants as a means for borrowing and lending in the short term, from several days to just under a year. Money market securities consist of negotiable certificates of deposit (CDs), bankers acceptances, U.S. Treasury bills, commercial paper, municipal notes, federal funds and repurchase agreements (repos)."
( http://www.investopedia.com/terms/m/moneymarket.asp#ixzz3dQWONPrF )
