Usually semicircular, but also sometimes completely round elongated metal grater of sheet iron with which nutmegs can be finely grated. These graters have a separate place where the nuts can be stored, usually at the top and closed with a lid. The grater can also be placed in a container in which both the nuts can be stored and in which the finely grated nutmeg can be collected.
See also nutmeg mill. [MOT]