螺旋

Noun

 * 1) helix; spiral
 * 2)  screw

Etymology 1
First appears in texts from the early 1800s. Ultimately from. Compare modern 🇨🇬 reading lêr-soân.

Noun

 * 1) a helix, a spiral
 * 2) a screw

Derived terms

 * : a spiral staircase
 * : a helix or spiral shape
 * : a helix or spiral shape
 * : a spirillum (a spiral-shaped bacterium)
 * : a screw (as for a ship or boat; obsolete, replaced by propellers)
 * : an Archimedes screw, a screw-shaped water pump
 * : an Archimedes screw, a screw-shaped water pump