Diphtheria
Pronunciation : Diph*the"ri*a
Part of Speech : n.
Etymology : [NL., fr. Gr. membrane): cf. depsere to knead.] (Med.)
Definition : Defn: A very dangerous contagious disease in which the air passages, and especially the throat, become coated with a false membrane, produced by the solidification of an inflammatory exudation. Cf. Group.
Source : Webster's Unabridged Dictionary, 1913