Zy·mot·ic a.
1. Of, pertaining to, or caused by, fermentation.
2. Med. Designating, or pertaining to, a certain class of diseases. See Zymotic disease, below.
Zymotic disease Med., any epidemic, endemic, contagious, or sporadic affection which is produced by some morbific principle or organism acting on the system like a ferment.
Note: Now (2004) referred to as an infectious disease. -- PJC
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