[duhk-tl, -til]
  1. capable of being hammered out thin, as certain metals; malleable.
  2. capable of being drawn out into wire or threads, as gold.
  3. able to undergo change of form without breaking.
  4. 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
Related formsduc·tile·ly, adverbduc·til·i·ty, duc·tile·ness, nounnon·duc·tile, adjectivenon·duc·til·i·ty, nounsem·i·duc·tile, adjectiveun·duc·tile, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-ductile


  1. (of a metal, such as gold or copper) able to be drawn out into wire
  2. able to be moulded; pliant; plastic
  3. easily led or influenced; tractable
Derived Formsductilely, adverbductility (dʌkˈtɪlɪtɪ) or ductileness, noun

Word Origin for ductile

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 non-ductile



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

non-ductile in Medicine


[dŭktəl, -tīl′]
  1. Easily molded or shaped.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

non-ductile in Science


  1. 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.
  2. 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.