Helicity

Helicity may refer to:


 * Helicity (fluid mechanics), the extent to which corkscrew-like motion occurs
 * Helicity (particle physics), the projection of the spin onto the direction of momentum
 * Magnetic helicity, the extent to which a magnetic field "wraps around itself"
 * Circular dichroism, the differential absorption of left and right circularly polarized light
 * A form of axial chirality
 * A former name for inherent chirality