bur1

[bur] /bɜr/
noun
1.
a rough, prickly case around the seeds of certain plants, as the chestnut or burdock.
2.
any bur-bearing plant.
3.
something that adheres like a bur.
4.
Machinery, burr1 (defs 1, 3).
5.
Dentistry. a rotary cutting tool usually of steel or other hard metal shaped into a shank and a head, for removing carious material from teeth and preparing cavities for filling.
6.
Surgery. a cutting tool resembling that of a dentist, used for the excavation of bone.
verb (used with object), burred, burring.
7.
to extract or remove burs from.
Origin
1300-50; Middle English burre, apparently cognate with Danish burre, Norwegian, Swedish borre bur

bur2

[bur] /bɜr/
noun
1.
burr2 .

Bur.

1.
Burma.

bur.

1.
bureau.
British Dictionary definitions for bur

bur

/bɜː/
noun
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.
a variant spelling of burr3 , burr4
verb burs, burring, burred
6.
(transitive) to remove burs from
Also (for senses 1–4) burr
Word Origin
C14: probably of Scandinavian origin; compare Danish burre bur, Swedish kardborre burdock

BUR

abbreviation
1.
Myanmar (international car registration)
Word Origin
from Burma

burr3

/bɜː/
noun
1.
a washer fitting around the end of a rivet
2.
a blank punched out of sheet metal
Word Origin
C16 (in the sense: broad ring on a spear): variant of burrow (in obsolete sense: borough)

burr4

/bɜː/
noun
1.
short for buhrstone
2.
a mass of hard siliceous rock surrounded by softer rock
Word Origin
C18: probably from bur, from its qualities of roughness

Bur.

abbreviation
1.
Myanmar (Burma)
Word Origin and History for bur
n.

"prickly seed vessel of some plants," c.1300, burre, from a Scandinavian source (cf. Danish borre, Swedish hard-borre, Old Norse burst "bristle"), from PIE *bhars- (see bristle (n.)). Transferred 1610s to "rough edge on metal," which might be the source of the sense "rough sound of the letter -r-" (see burr).

bur in Medicine

bur or burr (bûr)
n.

  1. A rotary cutting instrument used in dentistry for excavating decay, shaping cavity forms, and reducing tooth structure.

  2. A drilling tool for enlarging a trephine hole in the cranium.

bur in Science
bur also burr
  (bûr)   
A type of pseudocarp in which the outer surface possesses hooks or barbs. Burs become caught in the feathers or hair of animals, which then carry them away to disperse the seeds.
Related Abbreviations for bur

BUR

  1. Burbank Glendale Pasadena Airport
  2. Myanmar (international vehicle ID)

bur.

  1. bureau
  2. buried

Bur.

  1. Burma
  2. Burmese