a rough edge or ridge left on an object (especially of metal) by the action of a tool or machine
a small rotary cutting tool with a shaped end, used chiefly in woodworking and dentistry
a siliceous rock used for millstones
a prickly seed case or flower head that clings to clothing and animal fur
denoting wood containing knots or other growths which show a pattern of dense swirls in the grain when sawn, used for veneers and other decorative woodwork
burr walnut
the coronet of a deer's antler
make a whirring sound
form a rough edge on (metal)