Former Vice President, killed Hamilton.

(surgery) A hole drilled into the cranium

Raymond William Stacy Burr (May 21, 1917September 12, 1993) was a Canadian actor who had a lengthy Hollywood film career and portrayed the title roles in the television dramas Perry Mason and Ironside.

Large, deciduous oak with acorns.

A burr mill, or burr grinder, is a mill used to grind hard, small food products between two revolving abrasive surfaces separated by a distance usually set by the user.

Invasive weed with spiky seeds.

the distinctive uvular pronunciation of R in the traditional dialects of Northumberland, Tyneside ('Geordie'), and northern County Durham, now remaining only among speakers of rural Northumberland, excluding Tyne and Wear.

The Burr Arch Truss—or, simply, Burr Truss or Burr Arch—is a combination of an arch and a multiple kingpost truss design.

Prickly seed pod, attaches easily.

Water-loving plant with spiny fruits.