Helix definition

hēlĭks
(mathematics) A three-dimensional curve that lies on a cylinder or cone, so that its angle to a plane perpendicular to the axis is constant.
noun
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A spiral form or structure.
noun
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To have the shape of a helix.
verb
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(architecture) A volute on a Corinthian or Ionic capital.
noun
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(anatomy) The folded rim of skin and cartilage around most of the outer ear.
noun
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(architecture) A small volute under the abacus of a Corinthian capital.
noun
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Any spiral, as one lying in a single plane or, esp., one moving around a right circular cone or cylinder at a constant angle, as a screw or bolt thread does.
noun
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(anat.) The folded rim of cartilage around the outer ear.
noun
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(archit.) An ornamental spiral, as a volute on a Corinthian or Ionic capital.
noun
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(mathematics) A three-dimensional curve that lies on a cylinder or cone, so that its angle to a plane perpendicular to the axis is constant.
noun
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A spiral form or structure.
noun
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(anatomy) The folded rim of skin and cartilage around most of the outer ear.
noun
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To move or position something into the shape of a helix.
verb
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To have the shape of a helix.
verb
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To move along a helical course; spiral.
verb
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Something, such as a strand of DNA, having a spiral shape.
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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.
noun
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(anatomy) The incurved rim of the external ear.
noun
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An upside down midair 360° spin in playboating.
noun
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A taxonomic genus within the superfamily Helicoidea — certain land snails.
pronoun
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The definition of a helix is a spiral, or something shaped like a spiral.

An example of a helix is the shape inside the shell of a chambered nautilus sea creature.

noun
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To move or position (something) into the shape of a helix.
verb
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To move along a helical course; spiral.
verb
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(zool.) Any of a genus (Helix) of spiral-shelled land gastropods, including the common, edible European snail (H. pomatia)
noun
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A three-dimensional spiral curve. In mathematical terms, a helix can be described as a curve turning about an axis on the surface of a cylinder or cone while rising at a constant upward angle from a base.
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Other Word Forms

Noun

Singular:
helix
Plural:
helices, helixes

Origin of helix

  • Latin from Greek wel-2 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin helix, from Ancient Greek ἕλιξ (heliks, “something twisted or spiral”).

    From Wiktionary