Helicity may refer to: *

Helicity (fluid mechanics) :''This page is about helicity in fluid dynamics. For helicity of magnetic fields, see magnetic helicity. For helicity in particle physics, see helicity (particle physics).'' In fluid dynamics, helicity is, under appropriate conditions, an invari ...

, the extent to which corkscrew-like motion occurs *

Helicity (particle physics) In physics, helicity is the projection of the spin onto the direction of momentum. Overview The angular momentum J is the sum of an orbital angular momentum L and a spin S. The relationship between orbital angular momentum L, the position o ...

, the projection of the spin onto the direction of momentum *

Magnetic helicity In plasma physics, magnetic helicity is a measure of the linkage, twist, and writhe of a magnetic field. In ideal magnetohydrodynamics, magnetic helicity is conserved. When a magnetic field contains magnetic helicity, it tends to form large-scal ...

, 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 Axial may refer to: * one of the anatomical directions describing relationships in an animal body * In geometry: :* a geometric term of location :* an axis of rotation * In chemistry, referring to an axial bond * a type of modal frame, in music * ...

* A former name for

inherent chirality In chemistry, inherent chirality is a property of asymmetry in molecules arising, not from a stereogenic or chiral center, but from a twisting of the molecule in 3-D space. The term was first coined by Volker Boehmer in a 1994 review, to describ ...

See also