The definition of a certificate of deposit, or CD, is a time deposit that will pay a specified amount of interest if the depositor leaves the money in the account for the term of the account.
(noun)When you deposit money and promise to leave it in the bank for six months in order to earn a higher interest rate, the paper you get representing the deposit is an example of a certificate of deposit.
See certificate of deposit in Webster's New World College Dictionary
See certificate of deposit in American Heritage Dictionary 4
Learn more about certificate of deposit