noma
noun
no·ma ˈnō-mə 
: a spreading invasive gangrene chiefly of the lining of the cheek and lips that is usually fatal and occurs most often in persons severely debilitated by disease or profound nutritional deficiency
Word History
Etymology
New Latin, from Greek nomē, from nemein to spread (of an ulcer), literally, to graze, pasture — more at nimble
First Known Use
1676, in the meaning defined above
Medical Definition
noma
noun
no·ma ˈnō-mə
: a spreading invasive gangrene chiefly of the lining of the cheek and lips that is usually fatal and occurs most often in persons severely debilitated by disease or profound nutritional deficiency see cancrum oris