Hypertext Webster Gateway: "ductor"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ductor \Duc"tor\, n. [L., fr. ducere to lead.]
1. One who leads. [Obs.] --Sir T. Browne.
2. (Mach.) A contrivance for removing superfluous ink or
coloring matter from a roller. See {Doctor}, 4. --Knight.
{Ductor roller} (Printing), the roller which conveys or
supplies ink to another roller. --Knight.
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