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A plural of helix.
a plural of helix
n., pl. hel•i•ces (ˈhɛl əˌsiz)
1. a spiral.
2. the curve formed by a straight line drawn on a plane when that plane is wrapped around a cylindrical surface, esp. a right circular cylinder, as the curve of a screw.
3. a spiral, scroll-like architectural ornament, as a volute on a Corinthian capital.
4. the curved fold forming most of the rim of the external ear.
5. alpha helix.
[1555–65; < Latin: a spiral, a kind of ivy < Greek hélix anything twisted]