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[Latin ductilis = easily led, ductile.] I. Ordinary Language : 1. Lit.: In the same sense as II. "Yellow color and ductility are properties of gold." Watts : Logic. 2. Fig .: The quality of being pliant or yielding to persuasion or advice. "There is not yet such a convenient ductility in the human understanding." - Burke: Tracts on the Popery Laws . dudgeon II. Metal.: The quality of adaptedne for draw ing into wire; as malleability is for being beaten into leaves. The order of metals in these two respects is as follows: Ductility-Gold, Silver, Platinum, Iron, Copper, Zinc, Tin, Lead, and Nickel; Malleability-Gold, Silver, Copper, Tin, Platinum, Lead, Zinc, Iron, and Nickel. The le ductile soft metals, such as magnesium, which cannot be drawn, are converted into wire by the proce of pre ing or squirting. *duc-tion, s. [Lat. ductio , from duct us , pa. par. of duco .) Leading, guidance. "The meanly wise and common ductions of bemisted nature."-Feltham: Resolves , ii. 66. duc-tor, s. [Lat., from duct us, pa. par. of duco.] 1. Ord. Lang.: A leader, a guide. 2. Calico-print.: A gauge or straight-edge to remove superfluous material, as one on the color roller of a calico-printing machine, inking-rollers, . [DOCTOR.] duct or-roller, s. Print.: A roller to conduct ink to another roller or cylinder. *duc-ture, s . [Lat. ductura , from auctus , pa. par. of duco. Guidance, leading, direction. "So far as the aucture of common reason, scripture, and experience will direct our enquiries."- South : Ser mons, v. 109. *duc-tus, s . [Lat.] Anat .: A duct (q. v.). dud, s. [Gael., a rag.] 1. A rag; generally in the plural. ""Every dud bids another good day,' Scotch proverb, spoken of people in rags and tatters." -Kelly , p. 109. 2. ( Pl .): Clothing generally, especially such as is of an inferior quality. "Rest o' the siller when Ailie has had her new gown, and the bairns thair bits o' duds ."-Scott: Guy Manner ing, ch. xxvi. dud-die, s [Etym. doubtful.) A dish, with two ears, turned out of solid wood.