In this Part -

"advance" means an advance of moneys by the Minister to a designated body under this Part;

"central treasury services" means - (a) the taking of deposits, or (b) the making of advances, or both on such terms and conditions (including terms and conditions relating to the payment of interest) as may be agreed from time to time by the Minister and the designated body concerned;

"deposit" means a deposit of moneys by a designated body with the Minister under this Part;