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bur

 [ber]
a form of drill used for creating openings in bone or similar hard material. Also spelled burr.
Bur. From Dorland's, 2000.

bur

(ber), This spelling is preferred to burr.
1. A rotary cutting instrument.
2. In ophthalmology, a device used to remove rust rings embedded in the cornea.
Synonym(s): burr

burdock

Chinese medicine
A biennial herb rich in essential oils, arctiol, fukinone, volatile (acetic, butyric, isovaleric) and propionic acids, inulin (up to 50% by weight), non-hydroxyl (lauric, myristic, palmitic, and stearic) acids, polyacetylenes, tannic acid and taraxasterol; the seeds and roots are anti-inflammatory, antimicrobial, antipyretic, antitussive, diaphoretic, diuretic, expectorant and laxative. Burdock is used for abscesses, bronchitis, chickenpox, low back pain, pulmonary congestion, syphilis and urethritis; the seeds are used to treat colds, measles, sore throat and tonsillitis; the roots and leaves are used for rheumatic complaints and gout.

Herbal medicine
Burdock is used by Western herbologists internally for bacterial and fungal infections, cystitis, fever, recuperation from strokes, renal disease, as a gastrointestinal tonic, to detoxify various organs; it is used topically for skin conditions such as acne, bites, dandruff, eczema, psoriasis, gout and leprosy.

Toxicity
Burdock should not be used in pregnancy, as it stimulates uterine contraction, or in young children.

bur

(bŭr)
A rotary cutting instrument, used in dentistry, consisting of a small metal shaft and a head designed in various shapes; used at various rotational velocities to excavate decay, shape cavity forms, and reduce tooth structure.

bur

(bŭr)
A rotary cutting instrument, used in dentistry, consisting of a small metal shaft and a head designed in various shapes; used at various rotational velocities to excavate decay, shape cavity forms, and reduce tooth structure.