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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.

Relating to diphtheria; diphtheritic.

Destructive to, or hindering the growth of, diphtheria bacilli. -- n.

ane in the air passages (also called membranous croup). See False croup, under False, and Diphtheria.

Pertaining to, or connected with, diphtheria.

(Zoöl.) See Proleg. -- False membrane (Med.), the fibrinous deposit formed in croup and diphtheria, and resembling in appearance an animal membrane. -- False papers (Naut.), documents carried by a ship giving false representations respecting her cargo, destination, ect., for the purpose of deceiving. -- False passa…

Tending to produce death; threatening a fatal issue; virulent; as, malignant diphtheria. Malignant pustule (Med.), a very contagious disease, transmitted to man from animals, characterized by the formation, at the point of reception of the virus, of a vesicle or pustule which first enlarges and then breaks down into an…