1. coiled or curving like a spiral.


  1. Geometry. a warped surface generated by a straight line moving so as to cut or touch a fixed helix.

adjective also: helicoidal

  1. biology shaped like a spirala helicoid shell


  1. geometry any surface resembling that of a screw thread


  1. Arranged in or having the general shape of a flattened coil or spiral.


  1. Arranged in or having the approximate shape of a flattened coil or spiral curve.


  1. A surface in the form of a coil or screw. A helicoid is generated mathematically by rotating a plane or twisted curve about an axis at a fixed rate and simultaneously translating it in the direction of the line of axis, also at a fixed rate.

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