مَدْخَل: مَوْضِعُ الدّخُول entrance, entry, entryway, doorway, gateway, way in, inlet, passage, opening; access

مَدْخَل: دِرَاسَةٌ تَمْهِيدِيّةٌ فِي مَوْضُوعٍ مَا introduction (to a field, etc.), subject

مَدْخَل: دُخُول ـ اُنْظُرْ: دُخُول