mandrel

noun

man·​drel ˈman-drəl 

variants or less commonly mandril

1

a

: a usually tapered or cylindrical axle, spindle, or arbor inserted into a hole in a piece of work to support it during machining

b

: a metal bar that serves as a core around which material (such as metal) may be cast, molded, forged, bent, or otherwise shaped

2

: the shaft and bearings on which a tool (such as a circular saw) is mounted

Examples of mandrel in a Sentence

Recent Examples on the Web

The resin infuses the strands before they are applied to the mandrel. —Joe Pappalardo, Popular Mechanics, 4 Apr. 2018

This appears to be a mandrel, or mold, around which carbon fiber is wound for the main body of the spaceship, or BFS. —Eric Berger, Ars Technica, 9 Apr. 2018

Word History

Etymology

Medieval Latin maundrellus, probably ultimately from Old Occitan mandre kingpin

First Known Use

1554, in the meaning defined at sense 1a

Medical Definition

mandrel

noun

man·​drel

variants also mandril

ˈman-drəl 

: the shaft and bearings on which a tool (as a dental grinding disk) is mounted