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)
—n
2.
any musteline animal
[C17: from Latin mustēlīnus, from mustēla weasel, from mūs mouse + -tēla, of unknown origin]