- capable of being hammered out thin, as certain metals; malleable.
- capable of being drawn out into wire or threads, as gold.
- able to undergo change of form without breaking.
- capable of being molded or shaped; plastic.
Origin of ductile
1300–50; Middle English < Latin ductilis, equivalent to duct(us) (past participle of dūcere to draw along) + -ilis -ile
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ductility
Some metals,p. 81 like cast iron, have absolutely no ductility.Practical Mechanics for Boys
J. S. Zerbe
A small quantity of tin, alloyed with silver, destroys its ductility.
Silver ranks next to gold in point of ductility and malleability.The Silversmith's Handbook
George E. Gee
What I mean is docility, ductility, sequacity—if there is any such word.Perlycross
R. D. Blackmore
On the other hand, their malleability, ductility, and power of resisting oxygen is generally diminished.
- (of a metal, such as gold or copper) able to be drawn out into wire
- able to be moulded; pliant; plastic
- easily led or influenced; tractable
C14: from Old French, from Latin ductilis, from dūcere to lead
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for ductility
mid-14c., from Old French ductile or directly from Latin ductilis "that may be led or drawn," from past participle of ducere "to lead" (see duke (n.)). Related: Ductility.
Online Etymology Dictionary, © 2010 Douglas Harper
- Easily molded or shaped.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Easily stretched without breaking or lowering in material strength. Gold is relatively ductile at room temperature, and most metals become more ductile with increasing temperature. Compare brittle malleable.
- Relating to rock or other materials that are capable of withstanding a certain amount of force by changing form before fracturing or breaking.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.