From The Collaborative International Dictionary of English v.0.48 [gcide]:
Bur \Bur\, Burr \Burr\ (b[^u]r), n. [OE. burre burdock; cf. Dan.
borre, OSw. borra, burdock, thistle; perh. akin to E. bristle
(burr- for burz-), or perh. to F. bourre hair, wool, stuff;
also, according to Cotgrave, "the downe, or hairie coat,
wherewith divers herbes, fruits, and flowers, are covered,"
fr. L. burrae trifles, LL. reburrus rough.]
1. (Bot.) 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; a seed vessel
having hooks or prickles. Also, any weed which bears burs.
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Amongst rude burs and thistles. --Milton.
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Bur and brake and brier. --Tennyson.
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2. The thin ridge left by a tool in cutting or shaping metal.
See {Burr}, n., 2.
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3. A ring of iron on a lance or spear. See {Burr}, n., 4.
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4. The lobe of the ear. See {Burr}, n., 5.
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5. The sweetbread.
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6. A clinker; a partially vitrified brick.
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7. (Mech.)
(a) A small circular saw.
(b) A triangular chisel.
(c) A drill with a serrated head larger than the shank; --
especially a small drill bit used by dentists.
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8. [Cf. Gael. borr, borra, a knob, bunch.] (Zool.) The round
knob of an antler next to a deer's head. [Commonly written
{burr}.]
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{Bur oak} (Bot.), a useful and ornamental species of oak
({Quercus macrocarpa}) with ovoid acorns inclosed in deep
cups imbricated with pointed scales. It grows in the
Middle and Western United States, and its wood is tough,
close-grained, and durable.
{Bur reed} (Bot.), a plant of the genus {Sparganium}, having
long ribbonlike leaves.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Burr \Burr\, v. i. [imp. & p. p. {Burred}; p. pr. & vb. n.
{Burring}.]
To speak with burr; to make a hoarse or guttural murmur.
--Mrs. Browning.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Burr \Burr\ (b[^u]r), n. [See {Bur}.] (Bot.)
1. A prickly seed vessel. See {Bur}, 1.
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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.
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The graver, in plowing furrows in the surface of the
copper, raises corresponding ridges or burrs.
--Tomlinson.
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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.
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4. A broad iron ring on a tilting lance just below the gripe,
to prevent the hand from slipping.
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5. The lobe or lap of the ear.
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6. [Probably of imitative origin.] 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}.
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7. The knot at the bottom of an antler. See {Bur}, n., 8.
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From WordNet (r) 3.0 (2006) [wn]:
burr
n 1: seed vessel having hooks or prickles [syn: {bur}, {burr}]
2: rough projection left on a workpiece after drilling or
cutting
3: 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) [syn: {Burr},
{Aaron Burr}]
4: rotary file for smoothing rough edges left on a workpiece
5: small bit used in dentistry or surgery [syn: {bur}, {burr}]
v 1: remove the burrs from [syn: {bur}, {burr}]
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