Define circular. circular synonyms, circular pronunciation, circular translation, English dictionary definition of circular. adj. 1. Of or relating to a circle.
A circular is an official letter or advertisement that is sent to a large number of people at the same time. The proposal has been widely publicised in information circulars sent to newspapers.
moving in or forming a circle or a circuit: the circular rotation of the earth. moving or occurring in a cycle or round: the circular succession of the seasons.
Circular refers to anything that has the shape of a circle, a round two-dimensional geometric shape. It can also refer to something that moves or happens in a cycle or a way that regularly repeats, or to an argument that is cyclic or repetitive due to lack of evidence or reasoning.
CIRCULAR meaning: 1 : shaped like a circle or part of a circle; 2 : moving or going around in a circle