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.
only on the value of the ionization energy of. the atom. 3. The electronegativity of an atom is de-. fined as 1/2(Electron Affinity) of the atom. 4. Atoms with high ionization energies and. high electron affinities have low electronega-. tivities.