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.
Photodermatitis is an abnormal skin reaction to sunlight, or more specifically to ultraviolet (UV) rays. It can be acute (sudden) or chronic (ongoing). Photodermatitis occurs when your immune system reacts to UV rays. You may develop a rash, blisters, or scaly patches.