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Occurring at the same time among an unusually large number of animals in a particular geographic area. Used of a disease.
An epizootic disease.

ep′i·zo·ot′i·cal·ly adv.


(Veterinary Science) (of a disease) suddenly and temporarily affecting a large number of animals over a large area
(Veterinary Science) an epizootic disease. Compare enzootic
ˌepizoˈotically adv


(ˌɛp ə zoʊˈɒt ɪk)

1. (of a disease) spreading quickly among animals. Compare enzootic (def. 1).
2. an epizootic disease.
[1740–50; < French épizootique, on the model of épidémique epidemic; see epi-, zoo-, -otic]
ep`i•zo•ot′i•cal•ly, adv.

epizootic, epizooty

a disease affecting many animals at the same time; an epidemic amongst animals. — epizootic, adj.
See also: Animals
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.epizootic - (of animals) epidemic among animals of a single kind within a particular region; "an epizootic disease"
animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement
epidemic - (especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously; "an epidemic outbreak of influenza"
References in periodicals archive ?
Then, the source of infection were goats from Greece, and we found the negative epizootic aspects of the free movement of goods between the member states of the European Union," Likov said.
Head of the State Inspectorate for Veterinary and Phytosanitary Safety Samir Osmonaliyev called epizootic security a complex issue in Kyrgyzstan, and added that the agency was working on this problem.
In 2005-2006 in Sanetti, only 4 pups in total survived from 3 packs, but in February during the epizootic, all 4 pups in a fourth pack, Badagassa, died.
The Kingdom has imposed a temporary ban on the import of live catfish from South Africa due to a new suspected outbreak of the Epizootic Ulcerative Syndrome (EUS) disease.
The clinical signs of bluetongue are identical to epizootic hemorrhagic disease (EHD), which has occurred seven times in the state since 1995.
Foothill abortion, also known as epizootic bovine abortion (EBA), has been a long-standing problem for California beef cattle producers.
Epizootic hemorrhagic disease (EHD), drought, moon phase, high temperatures, nocturnal deer movement are just a few of the many obstacles that were hurled their way.
com)-- Today, Bioo Scientific is releasing the NovareDx[TM] EHDV Strip Test Kit, the first commercial strip test for the detection of Epizootic Hemorrhagic Disease Virus (EHDV), an orbivirus that infects most wild and domestic ruminants.
TEHRAN (FNA)- First case of African Swine Fever, a contagious epizootic disease that causes high mortality in the populations of domestic pigs, has been identified in Poland, the Polish Agriculture Ministry said.
Researchers in the field of termite biological control have tried for decades to isolate and formulate microbial agents that could spread within termite (Isoptera) groups so as to create an epizootic event and achieve successful biological control (Culliney & Grace 2000).
An epizootic of beak deformities was documented in more than 2000 black-capped chickadees (Poecile atricapillus) and other wild bird species in North America.