circulation -- (the dissemination of copies of periodicals (as newspapers or magazines))
circulation -- (movement through a circuit; especially the movement of blood through the heart and blood vessels)
circulation -- ((library science) the count of books that are loaned by a library over a specified period)
circulation -- (number of copies of a newspaper or magazine that are sold; "by increasing its circulation the newspaper hoped to increase its advertising")
circulation -- (free movement or passage (as of cytoplasm within a cell or sap through a plant); "ocean circulation is an important part of global climate"; "a fan aids air circulation")
circulation -- (the spread or transmission of something (as news or money) to a wider group or area)
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