Cir'cu-lā'tion, n.

n. [Fr. circulation, Lat. circulatio.]

1. The act of moving in a circle, or in a course which brings the moving body to the place where its motion began; as, the circulation of the blood in the body.
2. The act of going about, or of passing from place to place or person to person; free diffusion; transmission.

The true doctrines of astronomy appear to have had some popular circulation. Whewell.

3. Currency; circulating coin, or notes, bills, &c., current for coin.
4. The extent to which any thing circulates or is circulated; the measure of diffusion; as, the circulation of a newspaper. “To increase the circulation of money, at least in bank-notes.” Bp. Burnet.