circulation

noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about circulation at Wordnik → Where our words come from →

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.