acute necrotizing ulcerative gingivitis n a progressive painful disease of the mouth that is marked esp. by dirty gray ulceration of the mucous membranes, spontaneous hemorrhaging of the gums, and a foul odor to the breath and that is associated with the presence of large numbers of Vincent's organisms called also fusospirochetosis, necrotizing ulcerative gingivitis, trench mouth, Vincent's infection
* * *
(ANUG), acute ulcerative gingivitis necrotizing ulcerative g.Medical dictionary. 2011.