The black-footed ferret, Mustela nigripes.
A diligent searcher.
An often domesticated mammal (Mustela putorius furo) rather like a weasel, descended from the polecat and often trained to hunt burrowing animals.
To uncover and bring to light by searching; usually to ferret out.
To hunt game with ferrets.
Any of the carnivorous mammals of the genus Mustela.