Definition of helicity in English:

helicity

noun

  • 1Biochemistry
    Helical character, especially of DNA.

    • ‘In addition, its helicity could be further increased.’
    • ‘One peptide was designed to maximize helicity and the other, having the same composition but a different sequence, was designed to minimize helical formation.’
    • ‘Mechanistically, the expansion event begins with a slight loss of helicity in the stem region.’
    • ‘This reduced its helicity and increased its average tilt, thereby presumably reducing fusion efficiency.’
    • ‘The reason for the relatively low helicity of long peptides is unclear to us.’
  • 2Physics
    A combination of the spin and the linear motion of a subatomic particle.

    • ‘One physicist later wrote that, had Maurice Goldhaber not existed, ‘I am not sure that the helicity of the neutrino would ever have been measured‘.’
    • ‘Linear equations can't easily capture magnetic field helicity, a property that prevents much of the field's energy from dissipating as heat.’

Origin

1950s ( helicity): from Latin helix, helic- spiral + -ity.

Pronunciation:

helicity

/həˈlisədē/