the spread or transmission of something (as news or money) to a wider group or area | (biology) a natural phenomenon involving living plants and animals |
the dissemination of copies of periodicals (as newspapers or magazines) | |
free movement or passage (as of cytoplasm within a cell or sap through a plant) | |
movement through a circuit; especially the movement of blood through the heart and blood vessels | |
number of copies of a newspaper or magazine that are sold | |
(library science) the count of books that are loaned by a library over a specified period | |