Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart's pumping action. Movement or passage through a system of vessels, as of water through pipes; flow. Free movement or passage. The passing of something, such as money or news, from place to place or person to person. The condition of being passed about and widely known; distribution. Dissemination of printed material, especially copies of newspapers or magazines, among readers. The number of copies of a publication sold or distributed.