|1.||a seed vessel or flower head, as of burdock, having hooks or prickles|
|2.||any plant that produces burs|
|3.||a person or thing that clings like a bur|
|4.||a small surgical or dental drill|
|5.||burr a variant spelling of burr|
|—vb , burs, burring, burred|
|6.||(tr) to remove burs from|
|[C14: probably of Scandinavian origin; compare Danish burre bur, Swedish kardborre burdock]|
|Myanmar (international car registration)|
bur or burr (bûr)
A rotary cutting instrument used in dentistry for excavating decay, shaping cavity forms, and reducing tooth structure.
A drilling tool for enlarging a trephine hole in the cranium.