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.
(by extension, figuratively) The office of a judge.
(heraldry) A white field with black spots.
The Baronet's eye, as he raised it to the splendour, fell right upon the central scutcheon, inpressed with the same device which his ancestor was said to have borne in the field of Hastings,--three ermines passant, argent, in a field azure, with its appropriate motto, Sans tache.
Any of various moths, especially in the family Yponomeutidae.
(heraldry) In blazon, of the color ermine (white with black spots).
To clothe with ermine.