meander

One of the turns of a winding, crooked, or involved course.

A tortuous or intricate movement.

(geography) one of a series of regular sinuous curves, bends, loops, turns, or windings in the channel of a river, stream, or other watercourse

Fretwork.

Perplexity.

Synonym of Greek key, a decorative border.

(mathematics) A self-avoiding closed curve which intersects a line a number of times.