Definitions
1.NounThe act of moving in a circle, or in a course which brings the moving body to the place where its motion began.
2.NounThe act of passing from place to place or person to person; free diffusion; transmission.
3.NounCurrency; circulating coins; notes, bills, etc., current for coin."The new bills will come into circulation next Friday."
4.NounThe extent to which anything circulates or is circulated; the measurement of diffusion, especially the number of copies sold of a publication.
5.NounThe movement of the blood in the circulatory system, by which it is brought into close relations with the cells and tissues of the body; the circulatory system.
6.NounThe movement of the sap in the vessels and tissues of plants.