n :  Vincent's infection in which the ulceration has spread to surrounding tissues (as of the pharynx and tonsils) - called also trench mouth , ulceromembranous gingivitis , ulceromembranous stomatitis 
 
Vincent, Jean Hyacinthe (1862-1950), French bacteriologist. Vincent was a researcher and later director at various French laboratories engaged in bacteriological and epidemiological research. In 1896 he described a fusiform bacillus and a spirochete which in association are the cause of hospital gangrene. Two years later he demonstrated that these two organisms are present in necrotizing ulcerative infections of the gums, tonsils, and throat; these infections are now known as Vincent's angina and Vincent's infection.
 
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