Noun
(uncountable) The condition of being nucleophilic
(countable) A measure of the extent to which something is nucleophilic, or of the reactivity of such a reagent
Source: en.wiktionary.orgNucleophilicity, sometimes referred to as nucleophile strength, refers to a substance's nucleophilic character and is often used to compare the affinity of atoms. Source: Internet
Nucleophilicity Many schemes attempting to quantify relative nucleophilic strength have been devised. Source: Internet