miniver
nounA white or light gray fur used as a trim on medieval robes and on ceremonial robes of state.
nounA mixed or spotted fur once commonly used for lining or trimming garments.
nounIn heraldry, a fur like vair, with the peculiarity that the escutcheon-miniver contains six or more horizontal rows of spots.
nounThe Siberian squirrel, which has fine white fur; also, the fur itself.
nounA fur esteemed in the Middle Ages as a part of costume. It is uncertain whether it was the fur of one animal only or of different animals.
nounA light gray or white
trimming on ceremonial robes consisting of white or light grey fur