Main definitions of arbor in English

: arbor1arbor2

arbor1

noun

  • 1An axle or spindle on which something revolves.

    • ‘The indenter was secured into the arbor of a milling machine.’
    • ‘The third step is to mount the wheels on the arbors and to place these assemblies between the front- and backplates in such a way that the wheels and pinions mesh and turn freely.’
    • ‘The bushing is secured in place by a solid arbor that passes through the front of the frame, through the middle of the bushing and is locked in place by the pivoting barrel and ejector rod.’
    1. 1.1A device holding a tool in a lathe.
      • ‘Technician A says unless the job is done with an arbor press the tone wheel is likely to become deformed.’
      • ‘Each shooter's tool kit contains loading dies, a small arbor press and a powder measure capable of being adjusted to throw precise charges.’

Origin

Mid 17th century: from French arbre tree, axis. The spelling change was due to association with Latin arbor tree.

Pronunciation:

arbor

/ˈɑːbə/

Main definitions of arbor in English

: arbor1arbor2

arbor2

noun