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The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

bur or burr, popular name for fruits that have barbed, pointed, or rough outgrowths. By clinging to the fur or hair of animals and the clothing of man they are transported from the parent plant, often great distances. Some common burs include those of the chestnut, burdock, bur marigold, and cocklebur. Burs are particularly obnoxious to sheep growers because of the difficulty of removing them from wool.

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bur

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

bur / bər/ (also burr) • n. 1. a prickly seed case or flowerhead that clings to animals and clothes. ∎  [usu. as adj.] a plant that produces burs, e.g., bur reed. 2. [as adj.] denoting wood containing knots or other growths that show a pattern of dense swirls in the grain when sawn, used for veneers and other decorative woodwork: bur walnut. 3. variant spelling of burr (senses 2, 3, and 5).

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BUR a traditional favorite: multiple plies are a distinguishing feature of built-up roofing, which has a century-old performance record. (Roofing).
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BUR is better than before: economical and durable, asphalt roofing remains a favorite for many facilities.(Smarter BUILDINGS: The Building Envelope)
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Operative application of the Great White #2 bur
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The importance of handpiece and bur selection
Magazine article from: Dental Products Report; 9/1/2001; ; 700+ words ; ...in my opinion, should be handpiece and bur selection. The importance of the technique...cost in burs simply replaces the current bur supply. As part of the 15-minute crown...perpendicularly oriented dentate carbide bur, and the Enamel Peel technique, which...
BUR gets another cool reception from lawmakers. (Bottom Up Review in Congress)
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