Source : Webster's Revised Unabridged Dictionary (1913)

Sinuosity \Sin`u*os"i*ty\, n.; pl. {Sinuosities}. [Cf. F.
   sinuosit['e].]
   1. Quality or state of being sinuous.

   2. A bend, or a series of bends and turns; a winding, or a
      series of windings; a wave line; a curve.

            A line of coast certainly amounting, with its
            sinuosities, to more than 700 miles.  --Sydney
                                                  Smith.

Source : WordNet®

sinuosity
     n : having curves; "he hated the sinuosity of mountain roads"
         [syn: {sinuousness}]