Definition of "helix" in English

noun

1. (mathematics) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three-dimensional curve seen in a screw or a spiral staircase.

2. (architecture) A small volute under the abacus of a Corinthian capital.

3. (anatomy) The incurved rim of the external ear.

   • helix piercing

4. An upside down midair 360° spin in playboating.

verb

1. To form or cause to form a helix.