Definición de helix en inglés:

helix

Saltos de línea: helix
Pronunciación: /ˈhiːlɪks
 
/

sustantivo (plural helices /ˈhiːlɪsiːz, ˈhɛl-/)

  • 1An object having a three-dimensional shape like that of a wire wound uniformly in a single layer around a cylinder or cone, as in a corkscrew or spiral staircase.
    Más ejemplos en oraciones
    • They found that DNA consists of two connected twisted strands in the shape of a helix.
    • The excess is carefully cut away to fabricate the helix shape.
    • A television monitor showed what was inside: a glowing ball of gas surrounded by a metal helix.
    Sinónimos
    spiral, coil, curl, corkscrew, twist, twirl, loop, gyre, whorl, scroll, curlicue, convolution
    technical volute, volution
  • 1.1 Geometry A curve on a conical or cylindrical surface which would become a straight line if the surface were unrolled into a plane.
    Más ejemplos en oraciones
    • A template in the shape of a narrow right-angle triangle is wrapped around the cylinder to be threaded, and the hypotenuse of the triangle forms the line of the helix.
    • The conical helix of their upward spiral against the flat blue sky is completely hypnotic.
  • 1.2 Biochemistry An extended spiral chain of atoms in a protein, nucleic acid, or other polymeric molecule.
    Más ejemplos en oraciones
    • The gray bands indicate the helix regions of the protein.
    • DNA molecules in nature are built from two complementary strands that bind to form the double helix.
    • The double helix of DNA is held together by hydrogen bonds.
  • 1.3 Architecture A spiral ornament.
    Más ejemplos en oraciones
    • Ross Lovegrove's stairway, with its helix profile, is part of a new tendency by designers to borrow forms from nature.
  • 2 Anatomy The rim of the external ear.
    Más ejemplos en oraciones
    • The ear print on the safe had a circular mark at the top of the ear helix.
    • Decrease oxygen saturation in blood in the helix of the ear by using an ear oximeter.

Origen

mid 16th century (in the architectural sense 'spiral ornament'): via Latin from Greek.

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Pronunciación: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
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