bur ring

Medical Dictionary

bur or burr (bûr)
n.

  1. A rotary cutting instrument used in dentistry for excavating decay, shaping cavity forms, and reducing tooth structure.

  2. A drilling tool for enlarging a trephine hole in the cranium.

American Heritage
Medical Dictionary

burr (bûr)
n.
Variant of bur.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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