mandril

mandrel

[man-druhl]
noun Machinery.
1.
a shaft or bar the end of which is inserted into a workpiece to hold it during machining.
2.
a spindle on which a circular saw or grinding wheel rotates.
3.
the driving spindle in the headstock of a lathe.
Also, mandril.


Origin:
1510–20; perhaps akin to French mandrin

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World English Dictionary
mandrel or mandril (ˈmændrəl)
 
n
1.  a spindle on which a workpiece is supported during machining operations
2.  a shaft or arbor on which a machining tool is mounted
3.  the driving spindle in the headstock of a lathe
4.  (Brit) a miner's pick
 
[C16: perhaps related to French mandrin lathe]
 
mandril or mandril
 
n
 
[C16: perhaps related to French mandrin lathe]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

mandrel
"miner's pick," 1510s, of unknown origin. Also applied from 17c. to parts of a lathe or a circular saw.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

mandrel man·drel or man·dril (mān'drəl)
n.

  1. A shaft on which a working tool is mounted, as in a dental drill.

  2. See mandrin.

The American Heritage® Stedman's Medical Dictionary
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