Source : Webster's Revised Unabridged Dictionary (1913)

Zymosis \Zy*mo"sis\, n. [NL., fr. Gr. ? fermentation, fr. ?
   ferment.] (Med.)
   (a) A fermentation; hence, an analogous process by which an
       infectious disease is believed to be developed.
   (b) A zymotic disease. [R.]

Source : WordNet®

zymosis
     n 1: a process in which an agent causes an organic substance to
          break down into simpler substances; especially, the
          anaerobic breakdown of sugar into alcohol [syn: {zymolysis},
           {fermentation}, {fermenting}, {ferment}]
     2: (medicine) the development and spread of an infectious
        disease (especially one caused by a fungus)