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- (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.
- (architecture) A small volute under the abacus of a Corinthian capital.
- (anatomy) The incurved rim of the external ear.
- An upside down midair 360° spin in playboating.
- (curve): spiral (not in technical use)
of the ear
- To form or cause to form a helix.
- 1953, Division of Metrology Technical Paper - Issues 1-7, page 25:
- A large positive inclination gives a chip which will helix out of the space between the face mill and the workpiece.
- 1967, Aviation Week & Space Technology - Volume 87, page 295:
- When the shaft is unsupported, the large torque tends to helix the inner core, and if the casing is not stiff enough, it will helix the casing also.
- 1997, Physical Review: Statistical physics, plasmas, fluids, and related interdisciplinary topics:
- The decrease in d enhances the probability that remaining SDLs will helix, leading to an outward traveling wave of helixing and a jump in 5d.
- 2010, Phillip Beach, Muscles and Meridians E-Book: The Manipulation of Shape, →ISBN, page 95:
- Conceptually, this field will helix up from the genital tip, here modelled as the caudal singularity of the left and right domains of the H-CFs.