Handedness is a human attribute reflecting the unequal distribution of fine motor skill between the left and right hands.

Look up handedness in Wiktionary, the free dictionary.

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

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