(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
of a speech expressing leave-taking; "a valedictory address"
of or relating to an occasion or expression of farewell; "a valedictory address"; "valedictory praise for his uniformly manly course"; "a suitable valedictory gesture"
a public instance of reciting or repeating (from memory) something prepared in advance; "the program included songs and recitations of well-loved poems"
the amount of activity over a communication system during a given period of time; "heavy traffic overloaded the trunk lines"; "traffic on the internet is lightest during the night"
the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time
trade or deal a commodity; "They trafficked with us for gold"