- belonging or pertaining to the family Mustelidae, including the martens, skunks, minks, weasels, badgers, and otters.
- resembling a weasel.
- tawny or brown, like a weasel in summer.
- of, relating to, or belonging to the Mustelidae, a family of typically predatory mammals including weasels, ferrets, minks, polecats, badgers, skunks, and otters: order Carnivora (carnivores)
- any musteline animal
