definition of
helix

[1] #1 helix n. [spiral] a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle. wn

[2] #2 helix n. [coil, spiral, volute, whorl] a structure consisting of something wound in a continuous series of loops; "a coil of rope". wn

[3] #3 helix n. [Helix, genus Helix] type genus of the family Helicidae. wn