Helix



[hee-liks] /ˈhi lɪks/

noun, plural helices
[hel-uh-seez] /ˈhɛl əˌsiz/ (Show IPA), helixes.
1.
a spiral.
2.
Geometry. the curve formed by a straight line drawn on a plane when that plane is wrapped around a cylindrical surface of any kind, especially a right circular cylinder, as the curve of a screw. Equation: x = a sinθ, y = a cosθ, z = b θ.
3.
Architecture.

4.
Anatomy. the curved fold forming most of the rim of the external ear.
5.
Biochemistry. .
/ˈhiːlɪks/
noun (pl) helices (ˈhɛlɪˌsiːz), helixes
1.
a curve that lies on a cylinder or cone, at a constant angle to the line segments making up the surface; spiral
2.
a spiral shape or form
3.
the incurving fold that forms the margin of the external ear
4.
another name for volute (sense 2)
5.
any terrestrial gastropod mollusc of the genus Helix, which includes the garden snail (H. aspersa)
n.

“a spiral thing,” 1560s, from Latin helix “spiral,” from Greek helix (genitive helikos), related to eilein “to turn, twist, roll,” from PIE *wel-ik-, from root *wel- “to turn, revolve” (see volvox).

helix he·lix (hē’lĭks)
n. pl. he·lix·es or hel·i·ces (hěl’ĭ-sēz’, hē’lĭ-)

helix
(hē’lĭks)

helix [(hee-liks)]

In geometry, a three-dimensional spiral shape, resembling a spring.

A hardware description language from Silvar-Lisco.

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