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Related to diphtheritic membrane: catarrhal, diphtheritic inflammation


 (dĭf-thîr′ē-ə, dĭp-)
An acute infectious disease caused by the bacterium Corynebacterium diphtheriae, which infects mucous membranes of the throat, causing formation of a thick layer called the false membrane that can obstruct breathing, and producing a potent toxin that enters the bloodstream and causes systemic effects that include damage to the heart and nervous system.

[New Latin diphthēria, from French diphthérie, from Greek diphtherā, piece of hide, leather; see letter.]

diph′the·rit′ic (-thə-rĭt′ĭk), diph·ther′ic (-thĕr′ĭk), diph·the′ri·al adj.
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Numerous thin, white, up to 1-cm-long nematodes, identified as S incognita, were observed embedded in the pharyngeal and esophageal mucosa under the diphtheritic membranes.