|diphtheria (dɪpˈθɪərɪə, dɪf-)|
|an acute contagious disease caused by the bacillus Corynebacterium diphtheriae, producing fever, severe prostration, and difficulty in breathing and swallowing as the result of swelling of the throat and formation of a false membrane|
|[C19: New Latin, from French diphthérie, from Greek diphthera leather; from the nature of the membrane]|
diphtheroid diph·the·roid (dĭf'thə-roid')
A local infection that resembles diphtheria, especially in the formation of a false membrane, but that is caused by a microorganism other than Corynebacterium diphtheriae. Also called pseudodiphtheria.
Any of various microorganisms resembling Corynebacterium diphtheriae.