Hartnup disease

noun

Hart·​nup disease ˈhärt-ˌnəp- 

: an inherited metabolic disease that is caused by abnormalities of the renal tubules and is characterized especially by aminoaciduria involving only monocarboxylic monoamines, a dry red scaly rash, and episodic muscular incoordination due to the effects of the disease on the cerebellum