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Definition a spiral or coil (i.e., a curve that lies on the surface of a cylinder or cone shape and cuts the element at a constant angle)
  • DNA molecules are shaped like a double helix.
  • a helix-shaped shell
  • a helical shell
  • Of land-shells I collected sixteen kinds (and two marked varieties, of which, with the exception of one Helix found at Tahiti, all are peculiar to this archipelago:)
    Charles Darwin  --  The Voyage of the Beagle
  • The article by Michael Rogers was "The Double-Edged Helix," Rolling Stone (March 25, 1976).
    Rebecca Skloot  --  The Immortal Life of Henrietta Lacks
  • It had required a Helix helicopter from the Kiev to the Tarawa, then a U.S. Navy Sea King to Norfolk.
    Tom Clancy  --  The Hunt for Red October
  • She began recognizing familiar structures, atomic linkages: a carbon atom here, helical wavering .... a glucose molecule.
    Frank Herbert  --  Dune
  • Twin lines of hardening earth snaked toward me, crossing like a DNA helix.
    Rick Riordan  --  The Throne of Fire
  • A long pointer, emerging from the area of no light beside the screen, rests on the volutes and helices, indicating which is which.
    Margaret Atwood  --  Cat's Eye
  • But it's the head of the sniper, spinning rapidly, throwing out a fine pink helix under the light.
    Neal Stephenson  --  Snow Crash
  • Shimmying for the sand roads, down in a helix to a sculptured body of water named Lake Inverarity.
    Thomas Pynchon  --  The Crying of Lot 49
  • One was a tall boy of about thirteen, his skin burnished bronze and his cornrows woven like DNA helixes.
    Rick Riordan  --  The Hidden Oracle
  • From the car window, Lourdes saw the island's wounded landscapes, its helices of palms.
    Christina Garcia  --  Dreaming in Cuban
  • He dropped it back into the box and picked up instead the stretched helix of a small window-shade spring.
    Henry Roth  --  Call It Sleep
  • Tiny golden bubbles rose in double and triple helixes, evaporating with a hiss that sounded very nearly like a human sigh.
    Henry H. Neff  --  The Fiend And The Forge
  • At the end of a minute a dull splashing reverberated from the bottom of the well; the helical twist he had imparted to the rope had reached the grapnel below.
    Thomas Hardy  --  The Return of the Native
  • Thoughts about the screw as combined rigidness and adhesiveness and about its special helical interlock might lead naturally to solutions of impaction and use of solvents.
    Robert M. Pirsig  --  Zen and the Art of Motorcycle Maintenance
  • Double helixes of DNA twisted and spiraled across my screen, then were overlaid with faded, unreadable newspaper clippings, staccato chunks of sound, colored postcards of New York.
    James Patterson  --  The Angel Experiment
  • As soon as he completed his thesis, "An Analysis of Conical Helices", he transferred to Hughes's big California operation, where the real action was, eager to make his mark in the race for space.
    Jon Krakauer  --  Into the Wild
  • It was for a laugh, for a laugh, all the kids had laughed and laughed, and the droll tuba player of the old Elk's band had rendered it solo on his helical horn; with comical flourishes and doleful phrasing, "Boo boo boo booooo, Poor Robin clean"-a mock funeral dirge ....
    Ralph Ellison  --  Invisible Man

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