4. The extent to which anything circulates or is circulated; the measure of diffusion; as, the circulation of a newspaper.
5. (Physiol.) The movement of the blood in the blood-vascular system, by which it is brought into close relations with almost every living elementary constituent. Also, the movement of the sap in the vessels and tissues of plants.
Cir"cu*la*tive (?), a. Promoting circulation; circulating. [R.] Coleridge.
Cir"cu*la`tor (?), n. [Cf. L. circulator a peddler.] One who, or that which, circulates.
Cir`cu*la*to"ri*ous (?), a. Travelling from house to house or from town to town; itinerant. [Obs.] "Circulatorious jugglers." Barrow.
Cir"cu*la*to*ry (?), a. [L. circulatorius pert. to a mountebank: cf. F. circulatoire.]