helix

/ˈhiːlɪks/

IPA: /HH IY1 L IH0 K S/

noun

1
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
A small volute under the abacus of a Corinthian capital.
3
The incurved rim of the external ear.
4
An upside down midair 360° spin in playboating.

Synonyms

verb

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