a rough, prickly case around the seeds of certain plants, as the chestnut or burdock.
any bur-bearing plant.
something that adheres like a bur.
Machinery, burr1 (defs 1, 3).
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.
Surgery. a cutting tool resembling that of a dentist, used for the excavation of bone.
to extract or remove burs from.
burr2 .
Also, buhr. a protruding, ragged edge raised on the surface of metal during drilling, shearing, punching, or engraving.
a rough or irregular protuberance on any object, as on a tree.
a small, hand-held, power-driven milling cutter, used by machinists and die makers for deepening, widening, or undercutting small recesses.
a lump of brick fused or warped in firing.
to form a rough point or edge on.
a washer placed at the head of a rivet.
a blank punched out of a piece of sheet metal.
Contemporary Examples

The Truth About Older People Having More Sex Kent Sepkowitz January 21, 2014

Historical Examples

In the Valley Harold Frederic
Mr. Punch’s Book of Love Various
American Forest Trees Henry H. Gibson
Life in a Railway Factory Alfred Williams
The House in Good Taste Elsie de Wolfe
Trees of Indiana Charles Clemon Deam
The Tale of Grunty Pig Arthur Scott Bailey
Trees Worth Knowing Julia Ellen Rogers
Trees Every Child Should Know Julia Ellen Rogers

a seed vessel or flower head, as of burdock, having hooks or prickles
any plant that produces burs
a person or thing that clings like a bur
a small surgical or dental drill
a variant spelling of burr3 , burr4
verb burs, burring, burred
(transitive) to remove burs from
Myanmar (international car registration)
Myanmar (Burma)
a small power-driven hand-operated rotary file, esp for removing burrs or for machining recesses
a rough edge left on a workpiece after cutting, drilling, etc
a rough or irregular protuberance, such as a burl on a tree
(Brit) a burl on the trunk or root of a tree, sliced across for use as decorative veneer
noun, verb
a variant spelling of bur
verb (transitive)
to form a rough edge on (a workpiece)
to remove burrs from (a workpiece) by grinding, filing, etc; deburr
(phonetics) an articulation of (r) characteristic of certain English dialects, esp the uvular fricative trill of Northumberland or the retroflex r of the West of England
a whirring sound
to pronounce (words) with a burr
to make a whirring sound
a washer fitting around the end of a rivet
a blank punched out of sheet metal
short for buhrstone
a mass of hard siliceous rock surrounded by softer rock
Aaron. 1756–1836, US vice-president (1800–04), who fled after killing a political rival in a duel and plotted to create an independent empire in the western US; acquitted (1807) of treason

bur also burr
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.
Burbank Glendale Pasadena Airport
Myanmar (international vehicle ID)


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