[n] an advertisement (usually printed on a page or in a leaflet) intended for wide distribution; "he mailed the circular to all subscribers"
[adj] marked by or moving in a cycle
[adj] having a circular shape
[adj] shaped like a ring
annular, annulate, annulated, ball-shaped, bill, broadsheet, broadside, bulblike, bulbous, capitate, circinate, coccoid, cumuliform, cyclic, cyclical, discoid, discoidal, disklike, flier, flyer, global, globose, globular, handbill, moonlike, moon-round, n