1. (n.) A state of being anfractuous, or full of windings and turnings; sinuosity.

2. (n.) A sinuous depression or sulcus like those separating the convolutions of the brain.

anfractuosity bypass circuit circuitousness circumambages circumbendibus circumlocution circumvolution convolution crinkle crinkling detour deviation deviousness digression excursion flexuosity flexuousness indirection intorsion involution meander meandering obliqueness periphrase periphrasis rivulation roundabout roundabout way roundaboutness sinuation sinuosity sinuousness slinkiness snakiness torsion tortility tortuosity tortuousness turning twisting undulation wave waving winding