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From Latin ducere (to lead). See also doctor.


ductor (plural ductors)

  1. (obsolete) One who leads.
    (Can we find and add a quotation of Sir Thomas Browne to this entry?)
  2. (printing) A device, usually in the form of an oscillating roller, for transferring ink from a source to the ink train rollers in a controlled manner.
    • 1883, Andrew Overend, "Inking apparatus for printing-machines", US patent US363760, filed 9 November 1883, issued 24 May 1887.
      The combination, with a fountain-roller and an ink-cylinder, of a ductor movable between said roller and cylinder for delivering ink from one to the other...
    • 2004, Daniel Gamota, Printed Organic and Molecular Electronics, Springer, 2004 ISBN 1402077076.
      Ink is transferred to the ink distribution rollers by a ductor roller.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for ductor in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)



From dūcō (I lead, guide).



ductor m (genitive ductōris); third declension

  1. leader
  2. commander, general
  3. (figuratively) iron worker (one who draws out)


Third declension.

Case Singular Plural
nominative ductor ductōrēs
genitive ductōris ductōrum
dative ductōrī ductōribus
accusative ductōrem ductōrēs
ablative ductōre ductōribus
vocative ductor ductōrēs

Derived terms[edit]

Related terms[edit]


  • ductor in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • ductor in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • du Cange, Charles (1883), “ductor”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • ductor” in Félix Gaffiot’s Dictionnaire Illustré Latin-Français, Hachette (1934)
  • ductor in Ramminger, Johann (accessed 16 July 2016) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700[1], pre-publication website, 2005-2016



ductor m (plural ductores)

  1. guide, conductor
  2. probe (surgical)