circulation meaning and definition

CIRCULATION noun

Definition of circulation (noun)

1. the dissemination of copies of periodicals (as newspapers or magazines)
2. movement through a circuit; especially the movement of blood through the heart and blood vessels
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
   • "by increasing its circulation the newspaper hoped to increase its advertising"
5. 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"
6. the spread or transmission of something (as news or money) to a wider group or area