Definations of bur:
1.
1. A rough prickly husk or covering surrounding the seeds or fruits of
plants such as the chestnut or the burdock.
2. A plant producing such husks or coverings.
2.
1. A persistently clinging or nettlesome person or thing.
3. A rough protuberance, especially a burl on a tree.
4. Any of various rotary cutting tools designed to be attached to a drill. |