VINCENT'S INFECTION

noun Date: circa 1922 a progressive painful disease of the mouth that is marked especially by dirty gray ulceration of the mucous membranes, bleeding of the gums, and a foul odor to the breath and that is associated with the presence of large numbers of a rod-shaped bacterium ( Fusobacterium fusiforme syn. F. nucleatum ) and a spirochete ( Treponema vincentii syn. Borrelia vincentii ) in the lesions