*sinuosity*

n.; pl. Sinuosities [ Cf. F. sinuosité. ] 1. Quality or state of being sinuous. [ 1913 Webster ]

2. A bend, or a series of bends and turns; a winding, or a series of windings; a wave line; a curve. [ 1913 Webster ]

A line of coast certainly amounting, with its sinuosities, to more than 700 miles. Sydney Smith. [ 1913 Webster ]