/berr/, n., v., burred, burring.n.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. Mach. 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. Surg. a cutting tool resembling that of a dentist, used for the excavation of bone.v.t.7. to extract or remove burs from.[1300-50; ME burre, appar. c. Dan burre, Norw, Sw borre bur]bur2/berr/, n.burr2.
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