Wiktionary
automated teller machine
n. (context banking English) A device that provides bank customers with cash withdrawal and other services without the need for a bank teller.
WordNet
automated teller machine
n. an unattended machine (outside some banks) that dispenses money when a personal coded card is used [syn: cash machine, cash dispenser, automatic teller machine, automated teller, automatic teller, ATM]
Usage examples of "automated teller machine".
Dana wrote out a deposit slip, put the cash and the slip in an envelope, and deposited the envelope in the automated teller machine.