The word derives from the Greek. The longest side of a right-angled triangle is called the hypotenuse which is why the hypotenuse is always the longest side of a right-angled triangle.
Medical Definition of neurodermatitis. plural. neurodermatitises. or. neurodermatititides. \-Ëtit-É-ËdÄz\play. : chronic eczematous dermatitis arising from repeated rubbing or scratching of a real or imagined irritation of the skinâsee lichen simplex chronicus.
Causes. The exact cause of neurodermatitis isn't known. Sometimes neurodermatitis begins with something that simply rubs or irritates the skin, such as tight clothing or a bug bite. As you rub or scratch the area, it gets itchier. The more you scratch, the more it itches.