weasel
n//ˈwizl̩//vessla
Any of the carnivorous mammals of the genera Mustela, Neogale, Poecilogale, and Lyncodon, having a slender body, a long tail and usually a light brown upper coat and light-coloured belly.
A least weasel (Mustela nivalis).
Any of certain other species of the family Mustelidae.