Asynchronous Transfer Mode
WordNet
noun
(1) A means of digital communications that is capable of very high speeds; suitable for transmission of images or voice or video as well as data
"ATM is used for both LAN and WAN"
WiktionaryText
Noun
asynchronous transfer mode (initialism ATM)
- A broadband voice and data technology with class of service transmission for sending and receiving voice, data, and multimedia information over a fiber-optic network.