adj. 1. Of or relating to a circle. 2. a. Shaped like or nearly like a circle; round. b. Moving in or forming a circle. 3. Circuitous; roundabout: took a circular route to the office. 4. Using a premise to prove a conclusion that in turn is used to prove the premise: a circular argument. 5. Defining one word in terms of another that is itself defined in terms of the first word. 6. Addressed or distributed to a large number of persons. n. A printed advertisement, directive, or notice intended for mass distribution. [Middle English circuler, from Anglo-Norman, from Latin circulāris, from circulus, circle; see CIRCLE.] cir′cu·lari·ty (-lărĭ-tē) n. circu·lar·ly adv. |
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