Burr

n.	1.	(Bot.) A prickly seed vessel. See Bur, 1.
	2.	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. The graver, in plowing furrows in the surface of the copper, raises corresponding ridges or burrs. - Tomlinson.
	3.	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.
	4.	A broad iron ring on a tilting lance just below the gripe, to prevent the hand from slipping.
	5.	The lobe or lap of the ear.
	6.	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 burr, Northumberland burr, or Tweedside burr.
	7.	The knot at the bottom of an antler. See Bur, n., 8.
v. i.	1.	To speak with burr; to make a hoarse or guttural murmur. [imp. & p. p. Burred ( ); p. pr. & vb. n. Burring.]

Noun	1.	burr - seed vessel having hooks or prickles Synonyms: bur
	2.	burr - rough projection left on a workpiece after drilling or cutting
	3.	Burr - 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) Synonyms: Aaron Burr
	4.	burr - rotary file for smoothing rough edges left on a workpiece
	5.	burr - small bit used in dentistry or surgery Synonyms: bur
Verb	1.	burr - remove the burrs from Synonyms: bur

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