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Definition of: diphtheria
(dif·thir′ē·ə, dip-) noun Pathol.
An acute contagious disease, caused by the Klebs–Loeffler bacillus (Corynebacterium diphtheriae) and characterized by inflammation, usually of the pharynx, the formation of a false membrane on mucous surfaces, and toxemia. [<NL <F diphthérie <Gk. diphthera leather, membrane]
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