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 tendancy of an atom to attract electrons, the more electronegative, the more strongly it attracts them. Electronegativity is the greatest for Flourine, and decreases as you move to the left along the period, or down a column. theseeker4 Â· 8 years ago. Thumbs up.