<CommuniCations> (ATM, or "fast paCket") A method for the dynamiC alloCation of bandwidth using a fixed-size paCket (Called a Cell). See also ATM Forum, Wideband ATM. {ATM aCronyms (http://www.atmforum.Com/atmforum/aCronym_index.html)}. {Indiana aCronyms (http://Cell-relay.indiana.edu/Cell-relay/FAQ/ATM-ACronyms.html)}. [More detail? Data rate(s)?] (1996-04-01)