circulation
cir.cu.la.tion \.s*r-ky*-'la--sh*n\ \'s*r-ky*-.la-t-iv\ \-l*-.to-r-e-,
-.to.r-\ n 1: FLOW 2: orderly movement through a circuit; esp : the
movement of blood through the vessels of the body induced by the pumping
action of the heart 3a: passage or transmission from person to person or
place to place; esp : the interchange of currency {coins in ~} 3b: the
extent of dissemination : as 3b1: the average number of copies of a
publication sold over a given period 3b2: the total number of items taken
by borrowers from a library - cir.cu.la.tive aj