bur 1
/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. burr 1 (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 ]
bur 2
/berr/ , n.
burr 2 .