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1. Musteline mammal of prairie regions of United States; nearly extinct
   - black-footed ferret, Mustela nigripes
    
2. Domesticated albino variety of the European polecat bred for hunting rats and rabbits

1. Hound or harry relentlessly
    
2. Hunt with ferrets
    
3. Search and discover through persistent investigation
   "She ferreted out the truth"
   - ferret out

Derived forms: ferreting, ferreted, ferrets

Type of: discover, find, fitch [archaic], fitchew [archaic], foulmart [archaic], foumart [archaic], hound, hunt, hunt down, Mustela putorius, mustelid, musteline, musteline mammal, polecat, run, trace, track down

Part of: genus Mustela, Mustela

Encyclopedia: Ferret