what is a money market account mma 
the term money market account mma refers to an interest bearing account at a bank or credit union sometimes referred to as money market deposit accounts mmda money market accounts have some features that are not found in other types of accounts most money market accounts pay a higher interest rate than regular passbook savings accounts and often include check writing and debit card privileges they may also come with restrictions that make them less flexible than a regular checking account they are important for calculating tangible net worth investopedia tara anand