title: Handedness (disambiguation)
text: # Handedness (disambiguation)
  
  Handedness is a human attribute reflecting the unequal distribution of fine motor skill between the left and right hands.
  
  Handedness may also refer to:
  
  * Chirality, Greek for handedness, used to describe similar concepts in other fields:
     * Chirality (chemistry), a property of molecules having a non-superimposable mirror image
     * Chirality (electromagnetism), an electromagnetic propagation in chiral media
     * Chirality (mathematics), the property of a figure not being identical to its mirror image
     * Chirality (physics), when a phenomenon is not identical to its mirror image
     * Sinistral and dextral, terms in biology and geology
  * Orientation (vector space), an asymmetry that makes a reflection impossible to replicate by means of a simple rotation
  * Handedness of a helix, a spiral structure
     * Handedness of screw threads, springs, or propellers, in mechanics and engineering
  