Noun
small bit used in dentistry or surgery

Noun
rough projection left on a workpiece after drilling or cutting

Noun
rotary file for smoothing rough edges left on a workpiece

Noun
United States politician who served as Vice President under Jefferson; he mortally wounded his political rival Alexander Hamilton in a duel and fled south (1756-1836)

Noun
seed vessel having hooks or prickles

Verb
remove the burrs from

n.
Any rough or prickly envelope of the seeds of plants, whether a pericarp, a persistent calyx, or an involucre, as of the chestnut and burdock. Also, any weed which bears burs.

n.
The thin ridge left by a tool in cutting or shaping metal. See Burr, n., 2.

n.
A ring of iron on a lance or spear. See Burr, n., 4.

n.
The lobe of the ear. See Burr, n., 5.

n.
The sweetbread.

n.
A clinker; a partially vitrified brick.

n.
A small circular saw.

n.
A triangular chisel.

n.
A drill with a serrated head larger than the shank; -- used by dentists.

n.
The round knob of an antler next to a deer's head.

n.
A prickly seed vessel. See Bur, 1.

n.
The thin edge or ridge left by a tool in cutting or shaping metal, as in turning, engraving, pressing, etc.; also, the rough neck left on a bullet in casting.

n.
A thin flat piece of metal, formed from a sheet by punching; a small washer put on the end of a rivet before it is swaged down.

n.
A broad iron ring on a tilting lance just below the gripe, to prevent the hand from slipping.

n.
The lobe or lap of the ear.

n.
A guttural pronounciation of the letter r, produced by trilling the extremity of the soft palate against the back part of the tongue; rotacism; -- often called the Newcastle, Northumberland, or Tweedside, burr.

n.
The knot at the bottom of an antler. See Bur, n., 8.

v. i.
To speak with burr; to make a hoarse or guttural murmur.

Burr

The graver, in plowing furrows in the surface of the copper, raises corresponding ridges or burrs.

Burr

A prickly seed vessel. See Bur, 1.

To speak with burr; to make a hoarse or guttural murmur.