WordReference Random House Learner's Dictionary of American English © 2016
cir•cu•lar /ˈsɝkyəlɚ/USA pronunciation   adj. 
  1. having the form of a circle; round:A bright, circular object suddenly appeared in the sky.
  2. of or relating to a circle[usually: before a noun]the circular diameter.
  3. moving in or forming a circle or a circuit:a circular path.
  4. Philosophyattempting to prove a conclusion by using a statement that depends on the conclusion:a circular argument.
  5. [before a noun](of a letter, etc.) intended for general circulation.

n. [countable]
  1. a letter or notice intended for the public or for anyone to see:She posted the circular on the bulletin board.
cir•cu•lar•i•ty/ˌsɝkyəˈlærɪti/USA pronunciation  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2016
cir•cu•lar  (sûrkyə lər), 
  1. having the form of a circle;
    round:a circular tower.
  2. of or pertaining to a circle:a circular plane.
  3. moving in or forming a circle or a circuit:the circular rotation of the earth.
  4. moving or occurring in a cycle or round:the circular succession of the seasons.
  5. roundabout; indirect;
    circuitous:a circular route.
  6. Philosophy[Logic.]of or pertaining to reasoning in which the conclusion is ostensibly proved, but in actuality it or its equivalent has been assumed as a premise.
  7. pertaining to a circle or set of persons.
  8. (of a letter, memorandum, etc.) addressed to a number of persons or intended for general circulation.

  1. a letter, advertisement, notice, or statement for circulation among the general public.
  • Latin circulāris, equivalent. to circul(us) circle + -āris -ar1
  • late Middle English 1375–1425
cir′cu•lari•ty, circu•lar•ness, n. 
circu•lar•ly, adv. 
9 . handbill, flier, leaflet.

Collins Concise English Dictionary © HarperCollins Publishers::

circular /ˈsɜːkjʊlə/ adj
  1. of, involving, resembling, or shaped like a circle
  2. circuitous
  3. (of arguments) futile because the truth of the premises cannot be established independently of the conclusion
  4. travelling or occurring in a cycle
  5. (of letters, announcements, etc) intended for general distribution
  1. a printed or duplicated advertisement or notice for mass distribution

circularity /ˌsɜːkjʊˈlærɪtɪ/, ˈcircularness n ˈcircularly adv

'circular' also found in these entries:

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