permittivity
per mit tiv i ty |ˌpərmiˈtivitē ˌpərməˈtɪvədi | ▶noun Physics the ability of a substance to store electrical energy in an electric field.
permittivity |ˌpəːmɪˈtɪvɪti | ▶noun Physics the ability of a substance to store electrical energy in an electric field.