Helical may refer to:
*
Helix
A helix (; ) is a shape like a cylindrical coil spring or the thread of a machine screw. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is for ...
, the mathematical concept for the shape
*
Helical engine, a proposed spacecraft propulsion drive
*
Helical spring, a coilspring
*
Helical plc
Helical plc (formerly Helical Bar plc) is a Central London development-focused real estate business and a constituent of the FTSE SmallCap Index.
History
The Helical Bar and Engineering Company Limited was incorporated as a limited company on 3 J ...
, a British property company, once a maker of steel bar stock
*
Helicoil, a mechanical thread repairing insert
*
H-el-ical//, stage name for Hikaru, Japanese singer
{{disambig