Stoat (?), n. [OE. stot a stoat, horse, bullock; perhaps originally only of male animals, and akin to D. stooten to push, E. stutter; cf. Icel. sttr a bull, Sw. stut a bullock. Cf. Stot.] Zool.
The ermine in its summer pelage, when it is reddish brown, but with a black tip to the tail. The name is sometimes applied also to other brown weasels.
© Webster 1913.