Ductor(Mach) A contrivance for removing superfluous ink or coloring matter from a roller. See Doctor, 4.
DuctorOne who leads.
Century Dictionary and Cyclopedia
nductorAn inking-roller on a printing-press which takes printing-ink from the ink-fountain and conducts it (whence the name) to the distributing-table and -rollers. Improperly called doctor by many pressmen.
Webster's Revised Unabridged Dictionary
L., fr. ducere, to lead
Tell the 'ductor 'bout my white mouses died, and I can't go athout sumpin to carry.
"Little Folks Astray" by Sophia May (Rebecca Sophia Clarke)