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[man-druh l] /ˈmæn drəl/
noun, Machinery
a shaft or bar the end of which is inserted into a workpiece to hold it during machining.
a spindle on which a circular saw or grinding wheel rotates.
the driving spindle in the headstock of a lathe.
Origin of mandrel
1510-20; perhaps akin to French mandrin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for mandrel
  • The pieces are held in the flame using a thin metal wire called a mandrel, which is carefully removed as the pieces cool.
  • Surface maps based on metrology techniques determine the rate the aperture mask moves across the mandrel face.
  • Each capsule is made by depositing beryllium on a smooth, perfectly spherical plastic mandrel.
  • The mandrel shall be pulled through the pipe by hand to ensure that maximum allowable deflections have not been exceeded.
  • The heat melts the powder causing the fibers to stick together enough for the preform to be removed whole from the mandrel.
  • If driven with a mandrel, shell casings may be thinner.
  • The material is attached to a mandrel by heating an edge with a handheld heating iron while it is touching the mandrel.
British Dictionary definitions for mandrel


a spindle on which a workpiece is supported during machining operations
a shaft or arbor on which a machining tool is mounted
the driving spindle in the headstock of a lathe
(Brit) a miner's pick
Word Origin
C16: perhaps related to French mandrin lathe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mandrel

"miner's pick," 1510s, of unknown origin; perhaps borrowed from French mandrin, itself 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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mandrel in Medicine

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

  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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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