Definition of permittivity in US English:

permittivity

noun

Physics
  • The ability of a substance to store electrical energy in an electric field.

    • ‘These interactions are screened by a dielectric permittivity of the order 10.’
    • ‘In both cases, the lowering of the local permittivity entails a free energy decrease.’
    • ‘This would be in agreement with previous computer simulations of the permittivity of cytochrome c.’
    • ‘He calculated that a material that had a negative permittivity and a negative permeability would also have a negative refractive index.’
    • ‘First, his instrument included a permittivity sensor.’

Pronunciation

permittivity

/ˌpərməˈtivədē//ˌpərməˈtɪvədi/