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.
Neurofibromatosis, also known as NF, is a genetically inherited disorder of the nervous system (brain and spinal cord) which mainly affects the development of nerve (neural) cell tissues, causing tumors (neurofibromas) to develop on nerves, and may cause other abnormalities.