The relation " A is not included in B" OR " B is not includde in A" is the relation of distinction ( non-identity).
Does the relation : " reciprocal non inclusion" have a name?
It cannot be disjunction. For, surely two disjoint sets satisfy this relation, but this is not a necessary condition two sets to be disjoint to satisfy the relation in question.
Such sets are called incomparable.
In general, this term applies for any partial order $\prec$ when you have $x$ and $y$ such that neither $x\prec y$ nor $y\prec x$ are true.