n. 1.the dissemination of copies of periodicals (as newspapers or magazines) 2.movement through a circuit 3.(library science) the count of books that are loaned by a library over a specified period 4.number of copies of a newspaper or magazine that are sold 5.free movement or passage through a series of vessels (as of water through pipes or sap through a plant) 6.the spread or transmission of something (as news or money) to a wider group or area
