Definition of circular

• a. - In the form of, or bounded by, a circle; round.
• a. - repeating itself; ending in itself; reverting to the point of beginning; hence, illogical; inconclusive; as, circular reasoning.
• a. - Adhering to a fixed circle of legends; cyclic; hence, mean; inferior. See Cyclic poets, under Cyclic.
• a. - Addressed to a circle, or to a number of persons having a common interest; circulated, or intended for circulation; as, a circular letter.
• a. - Perfect; complete.
• a. - A circular letter, or paper, usually printed, copies of which are addressed or given to various persons; as, a business circular.
• a. - A sleeveless cloak, cut in circular form.