helix

helix
/hee"liks/, n., pl. helices /hel"euh seez'/, helixes.
1. a spiral.
2. Geom. the curve formed by a straight line drawn on a plane when that plane is wrapped around a cylindrical surface of any kind, esp. a right circular cylinder, as the curve of a screw. Equation: x = a sin(t), y = a cos(t), z = b t.
3. Archit.
a. a spiral ornament.
b. (in a Corinthian capital) either of two scrolls issuing from a cauliculus. Cf. Corinthian (def. 2).
4. Anat. the curved fold forming most of the rim of the external ear. See diag. under ear.
5. Biochem. See alpha helix.
[1555-65; < L: a spiral, a kind of ivy < Gk hélix anything twisted; cf. helíssein to turn, twist, roll]

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Universalium. 2010.

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  • hélix — hélix …   Dictionnaire des rimes

  • Helix — ? Helix …   Википедия

  • hélix — [ eliks ] n. m. • 1690; gr. helix « spirale » 1 ♦ Anat. Ourlet du pavillon de l oreille, décrivant un demi cercle en partant de la conque jusqu à la partie supérieure du lobule. 2 ♦ Zool. Escargot. ● hélix nom masculin (latin scientifique helix,… …   Encyclopédie Universelle

  • Helix SF — is a quarterly American speculative fiction online magazine edited by William Sanders and Lawrence Watt Evans. The poetry editor is Bud Webster.Sanders began the magazine as a place where writers could publish things that none of the regular… …   Wikipedia

  • helix — HÉLIX s.n. (anat.) Margine a pavilionului urechii. [< fr. hélix, cf. gr. helix]. Trimis de LauraGellner, 20.04.2005. Sursa: DN  HÉLIX s. n. margine a pavilionului urechii. (< fr. hélix) …   Dicționar Român

  • hélix — m. anat. Repliegue semicircular en el borde del pabellón de la oreja. Medical Dictionary. 2011. hélix repliegue semicircular que forma el …   Diccionario médico

  • helix — helix; helix·in; helix·om·e·ter; su·per·helix; …   English syllables

  • Helix — He lix, n.; pl. L. {Helices}, E. {Helixes}. [L. helix, Gr. ?, ?, fr. ? to turn round; cf. L. volvere, and E. volute, voluble.] 1. (Geom.) A nonplane curve whose tangents are all equally inclined to a given plane. The common helix is the curve… …   The Collaborative International Dictionary of English

  • Helix — Helix, OR U.S. city in Oregon Population (2000): 183 Housing Units (2000): 68 Land area (2000): 0.114338 sq. miles (0.296135 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.114338 sq. miles (0.296135 sq. km)… …   StarDict's U.S. Gazetteer Places

  • Helix, OR — U.S. city in Oregon Population (2000): 183 Housing Units (2000): 68 Land area (2000): 0.114338 sq. miles (0.296135 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.114338 sq. miles (0.296135 sq. km) FIPS code:… …   StarDict's U.S. Gazetteer Places

  • helix — a spiral thing, 1560s, from L. helix spiral, from Gk. helix (gen. helikos), related to eilein to turn, twist, roll, from PIE *wel ik , from root *wel to turn, revolve (see VULVA (Cf. vulva)) …   Etymology dictionary

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