See Also: helix-turn-helix motifs(medicine)
helix-loop-helix motifs(medicine)
helix turn helix(medicine)
helix loop helix(medicine)
helix(dictionary)
pi helix(medicine)
DNA helix(medicine)
helix(dictionary)
Helix(medicine)
a helix(medicine)

helix (iou)



helix noun. , helixes. M16.
[Latin helix, helicis from Greek helix, helikos.]
Chiefly Architecture. A spiral ornament, a volute; spec. each of the eight smaller volutes under the abacus of a Corinthian capital. M16.
An object of coiled form, either round an axis (like a corkscrew) or, less usually, in one plane (like a watchspring); Geometry a three-dimensional curve on a (notional) conical or cylindrical surface which becomes a straight line when the surface is unrolled into a plane. E17.
double helix: see DOUBLE adjective & adverb.
Anatomy. The curved fold which forms the rim of the exterior ear. Cf. ANTHELIX. L17.
Zoology. Any spiral-shelled mollusc of the genus Helix, which includes the garden snail, H aspersa. E19.