The mechanism of action of probiotics (e.g., having an impact on the intestinal microbiota or enhancing immune function) was dropped from the definition to encompass health effects due to novel mechanisms and to allow application of the term before the mechanism is confirmed.
Noun. 1. electronegativity - (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond. negativity.
Permittivity is analogous to magnetic permeability, and it specifies the ease with which electric flux is permitted to pass through a given dielectric material. The permittivity of a material is the ratio of the electric flux density to the electric field strength in that material. The permittivity of a material is a measure of how easily electric lines of force can pass through it. 1  Permittivity is analogous to magnetic permeability, and it specifies the ease with which electric flux is permitted to pass through a given dielectric material.