ˈnēˌmänˈpik- noun
Usage: usually capitalized N&P
Etymology: after Albert Niemann died 1921 German surgeon and Ludwig Pick died 1944 German physician
: a familial disease of infants characterized by gastrointestinal disturbances, malnutrition, and enlargement of the spleen, liver, and lymph nodes, and marked by abnormalities of the blood-forming organs