mandrel

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man·drel

, mandril (man'drĕl, man'drĭl),
1. The shaft or spindle to which a tool is attached and by means of which it is rotated.
2. Synonym(s): mandrin
3. In dentistry, an instrument used in a handpiece to hold a disc, stone, or cup used for grinding, smoothing, or finishing.
[G. mandra, a stable; the bed in which a ring's stone is set]

man·drel

, mandril (man'drĕl, -dril)
1. The shaft or spindle to which a tool is attached and by means of which it is rotated.
2. Synonym(s): mandrin.
3. dentistry An instrument used in a handpiece to hold a disc, stone, or cup used for grinding, smoothing, or finishing.

man·drel

, mandril (man'drĕl, -dril)
In dentistry, an instrument fitted in a handpiece to hold a disc, stone, or cup used for grinding, smoothing, or finishing.