Vermin (colloquially varmint or varmit) are pests or nuisance animals, that spread diseases or destroy crops or . Use of the term implies the need for extermination programs. Since the term is defined in relation to human activities, which species are included vary from area to area and person to person.
The term derives from the Latin vermis (worm), and was originally used for the worm-like larvae of certain insects, many of which infest foodstuffs came from farm The term varmint (and vermint) has been found in sources from c. 1530–1540s.
Varmint or varmit is an American-English colloquialism, particularly common to the American east and South-east within the nearby bordering states of the vast Appalachia region. The term describes farm pests which raid farms as opposed to infest farms—mainly predators such as foxes, weasels, and coyotes, sometimes even wolves or rarely, bears, but also, to a lesser degree, herbivores and burrowing animals that directly damage crops and land.
Although this version of the word "vermin" is not a prevalent term in Standard Written English, it is a common descriptor for certain kinds of weapons and pest control situations in the Appalachian and nearby states and the American west and south-west which have adopted terms such as varmint rifle and varmint hunting.