| Noun | 1. | circular - an advertisement (usually printed on a page or in a leaflet) intended for wide distribution; "he mailed the circular to all subscribers"stuffer - an advertising circular that is enclosed with other material and (usually) sent by mail | |
| Adj. | 1. | circular - having a circular shaperounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders" | |
| 2. | circular - shaped like a ringrounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders" | |
| 3. | circular - marked by or moving in a circle | |