ermine

A weasel found in northern latitudes (Mustela erminea in Eurasia, Alaska, and the Arctic, Mustela haidarum in Haida Gwaii, Mustela richardsonii in the rest of North America); its dark brown fur turns white in winter, apart from the black tip of the tail.

The white fur of this animal, traditionally seen as a symbol of purity and used for judges' robes.

The fur of this animal, used as a heraldic tincture: a white field with a repeating pattern of stylized black spots.

(figurative) The office of a judge.

Any of various moths, especially in the family Yponomeutidae

In blazon, of the colour ermine (white with black spots).

To clothe with ermine.