The Collaborative International Dictionary of English v.0.48:

Peripneumonia \Per`ip*neu*mo"ni*a\, Peripneumony
\Per`ip*neu"mo*ny\, n. [L. peripneumonia, Gr. ?: cf. F.
   p['e]ripneumonie. See Peri-, Pneumonia.] (Med.)
   Pneumonia. [Obsoles.]
   [1913 Webster]