ATM - Definition and Overview

ATM is an initialism with the following meanings:

• Adobe Type Manager, font management software from Adobe Systems
• Advanced Traffic Management and Arterial Traffic Management, terms used in the intelligent transportation system industry.
• air traffic management, or air traffic control
• Asynchronous Transfer Mode, a telecommunications protocol
• at-the-money, a term used in option pricing
• ataxia telangiectasia mutated (molecuar and cell biology, biochemistry), is a protein kinase that plays a critical role in reponse to certain types of DNA damage
• automatic teller machine or automated teller machine, a cash dispenser
• at the moment, commonly used Internet slang
• ATM is a Russian clone of the ZX Spectrum
• in sexual slang, ATM means ass to mouth, a kind of anal-oral contact

Also, atm. is an abbreviation for atmosphere, a unit of atmospheric pressure.