[1] : The Collaborative International Dictionary of English v.0.48

circular \cir"cular\, a. l. circularis, fr. circulus circle:
   cf. f. circulaire. see circle.
   1913 webster
   1. in the form of, or bounded by, a circle; round.
      1913 webster

   2. repeating itself; ending in itself; reverting to the point
      of beginning; hence, illogical; inconclusive; as, circular
      reasoning.
      1913 webster

   3. adhering to a fixed circle of legends; cyclic; hence,
      mean; inferior. see cyclic poets, under cyclic.
      1913 webster

            had virgil been a circular poet, and closely adhered
            to history, how could the romans have had dido?
                                                  --dennis.
      1913 webster

   4. addressed to a circle, or to a number of persons having a
      common interest; circulated, or intended for circulation;
      as, a circular letter.
      1913 webster

            a proclamation of henry iii., . . . doubtless
            circular throughout england.          --hallam.
      1913 webster

   5. perfect; complete. obs.
      1913 webster

            a man so absolute and circular
            in all those wished-for rarities that may take
            a virgin captive.                     --massinger.
      1913 webster

   circular are, any portion of the circumference of a circle.
      

   circular cubics math., curves of the third order which
      are imagined to pass through the two circular points at
      infinity.

   circular functions. math. see under function.

   circular instruments, mathematical instruments employed for
      measuring angles, in which the graduation extends round
      the whole circumference of a circle, or 360deg.

   circular lines, straight lines pertaining to the circle, as
      sines, tangents, secants, etc.

   circular note or circular letter.
      a com. see under credit.
      b diplomacy a letter addressed in identical terms to a
          number of persons.

   circular numbers arith., those whose powers terminate in
      the same digits as the roots themselves; as 5 and 6, whose
      squares are 25 and 36. --bailey. --barlow.

   circular points at infinity geom., two imaginary points
      at infinite distance through which every circle in the
      plane is, in the theory of curves, imagined to pass.

   circular polarization. min. see under polarization.

   circular sailing or globular sailing naut., the method
      of sailing by the arc of a great circle.

   circular saw. see under saw.
      1913 webster
see also:
circle cyclic poets cyclic circular are circular cubics circular functions 
function circular instruments circular lines circular note  or circular letter 
credit circular numbers circular points at infinity circular polarization polarization 
circular sailing globular sailing circular saw saw 

Circular >> C Words
Circular, definition of term: Circular
circular_pag1.html

Lines >> L Words
Lines, definition of term: Lines
lines_pag1.html

Circular File >> C Words
Circular File, definition of term: Circular File
circular+file_pag1.html

Circular Polari >> C Words
Circular Polari, definition of term: Circular Polari
circular+polari_pag1.html