adj. 1 a having the form of a circle. b moving (roughly) in a circle, finishing at the startingpoint (circular walk). 2 (of reasoning) using the point it is trying to prove as evidence for its conclusion, hence invalid. 3 (of a letter etc.) distributed to a number of people. n. circular letter, leaflet, etc. [Ti circularity plaeriti/ n. [Latin: related to CIRCLE]
