#1 circular a. [round] having a circular shape. wn
#2 circular n. [handbill, bill, broadside, broadsheet, flier, flyer, throwaway] an advertisement (usually printed on a page or in a leaflet) intended for wide distribution; "he mailed the circular to all subscribers". wn
#3 circular s. [rotary, orbitual] describing a circle; moving in a circle; "the circular motion of the wheel". wn
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