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.
Electronegativity is the degree to which an atom can attract bonding electrons to itself. The components of this relative measure consist of an atomâs ability to gain electrons and to retain them. The differences between the electronegativities of two atoms can be used to predict the relative strength of the bond.