Definitions for "Epizootic"
a disease of generally high morbidity that spreads rapidly through an animal population.
Attacking many animals over a short period of time, with resulting high morbidity (high percentage of animals becoming ill); said of infectious disease agents. Also, an acute disease outbreak
a disease that occurs at a time or place where it normally does not occur, or with a frequency that is substantially greater than that expected for the time period (Wobeser 1994). Synonym to epidemic in humans.