(logic circuits) A Boolean operation that is correct when the two enter variables are unique but is otherwise false; the XOR Procedure ( A B ¯ + A ¯ B displaystyle scriptstyle A overline B + overline A B (= quarrel) → Differenz f, → Auseinandersetzung file; a difference of feeling → eine Meinungsverschiedenheit; to settle or take care of on