helix definition
Wiktionary (0.00 / 0 votes) Rate this definition: helix (Noun). 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.helix (Noun). A small volute under the abacus of a Corinthian capital.iktionary (0.00 / 0 votes) Rate this definition: helix (Noun). 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.