helix

(noun) a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle. Synonyms: spiral.

(noun) a structure consisting of something wound in a continuous series of loops. Synonyms: coil, spiral, volute, whorl. Example: "A coil of rope."

(noun) type genus of the family Helicidae. Synonyms: Helix, genus Helix.