noun
basicity
Chemistry term: the degree to which a substance is basic (alkaline), or the number of replaceable hydrogen atoms in an acid.
この化合物の塩基度を測定する。
Measure the basicity of this compound.
Basicity as a property (alkalinity); 塩基度 is more about the measurable degree.
Compound of 塩基 (base, alkali) and 度 (degree). A straightforward technical term.