symmetric difference

Noun

 * 1)  The set that contains all elements belonging to either of given two sets but not to the both; the relative complement of the intersection in the union of given two sets.

Usage notes

 * In mathematical expressions, the symmetric difference of A and B is denoted by "A △ B" or "A ⊖ B."

Translations

 * Arabic: فرق تماثلي
 * Finnish: symmetrinen erotus
 * Japanese: 対称差集合