Other forms: ermines
An ermine is a small, wild weasel. Ermines, like minks and sables, have very soft fur and they’re all part of the mustelid family which also includes otters, badgers, and wolverines!
You're likely to come across the noun ermine in connection with the way humans use them — in some areas of the world, they are commonly raised or hunted for their fur, which is prized for its softness and can be made into coats or hats. Another word for an ermine is a stoat. A coat made from an ermine's skin is also called an ermine.