What does epizooty mean?
An epizooty is an outbreak of infectious disease among animals rather than among humans. The term is used especially in veterinary medicine, epidemiology, wildlife management, and discussions of diseases that spread through domestic herds, bird populations, or wild species. Because an epizooty can affect many animals, it is often compared with an epidemic or pandemic, but the distinction concerns the affected population: an epizooty is the animal counterpart of a human epidemic. Epizooty is a formal, usually countable noun and may sound technical in general writing, where animal outbreak is often clearer. The word is worth knowing because it names a specific pattern of disease emergence and helps specialists distinguish animal-health emergencies from human ones. It is also closely related to epizootic, the adjective describing such an outbreak, and to epizootiology, the study of disease among animals.
nounAn outbreak or epidemic of disease among animals, especially one affecting a particular species, population, or region.
- An outbreak or epidemic of disease among animals.
"Veterinarians worked to contain an epizooty spreading through the colony's penguin population."
"Veterinarians worked to contain an epizooty spreading through the colony's penguin population."
"The report described the epizooty as a serious threat to livestock across the region."
The regular plural is epizooties, with the final consonant sound changing from /y/ to /z/.
"The researchers documented three separate epizooties during the decade."
The human epidemic has an animal counterpart: its name is epizooty.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of epizooty
Epizooty was formed in scientific Latin from the combining form epi-, meaning upon, and Greek zōon, meaning animal, with the suffix -ia. The construction reflects its specialized sense of disease occurring among animals. It entered English in the 19th century as part of the developing scientific vocabulary of veterinary medicine and epidemiology.
Related word forms
How epizooty is actually used
Formal, specialist vocabulary used chiefly in veterinary medicine, epidemiology, wildlife management, and animal-health administration. In general writing, animal outbreak may be clearer.
Easily confused with epizooty
An epidemic is an outbreak of disease in a human population, whereas an epizooty is the corresponding outbreak among animals.
Epizooty is the noun naming an outbreak of disease among animals, while epizootic is the adjective describing such an outbreak.
An enzootic disease is one that is regularly present in a particular animal population, while an epizooty is an unusually widespread disease outbreak.