Pneumonia \Pneu*mo"ni*a\ (n[-u]*m[=o]"n[i^]*[.a]), n. [NL.,
         fr.
   Gr. pneymoni`a, fr. pney`mwn, pl. pney`mones the
         lungs, also,
   pley`mwn, which is perh. the original form.
         Cf. Pneumatio,
  
         Pulmonary.] (Med.)
  
         Inflammation of the lungs.
  
         [1913 Webster]

   Note:

   Catarrhal
         pneumonia, or
         Broncho-pneumonia,
         is
      inflammation of the lung
         tissue, associated with catarrh
      and with marked
         evidences of inflammation of bronchial
      membranes,
         often chronic; -- also called lobular pneumonia,
         from its affecting single lobules at a time.
      

  
         Croupous
         pneumonia, or ordinary pneumonia, is an acute
  
            affection characterized by sudden onset with a chill,
         high
      fever, rapid course, and sudden decline; -- also
         called
      lobar
         pneumonia, from its affecting a whole
         lobe of the
      lung at once. See under Croupous.

  
         Fibroid
         pneumonia is an inflammation of the interstitial

              connective tissue lying between the lobules of the
         lungs,
      and is very slow in its course, producing
         shrinking and
      atrophy of the lungs.
      [1913
         Webster]