 Suppose for a term t once introduced by a scientific theory \(T_1\) novel methods of determination become established through another theory \(T_2\), where these methods do not depend on any axiom of \(T_1\). Then, t would neither qualify as \(T_1\)-theoretical nor as \(T_2\)-theoretical. It is preferable, in this situation, to relativize Definition 1 to theory-nets N, i.e., compounds of several theories. Whether there are such cases has not yet been settled.