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[doo-ral-yuh-min, dyoo-] /dʊˈræl yə mɪn, dyʊ-/
an alloy of aluminum that is 4 percent copper and contains small amounts of magnesium, manganese, iron, and silicon: used for applications requiring lightness and strength, as in airplane construction.
Origin of duralumin
1905-10; < Latin dūr(us) hard + alumin(um) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for duralumin
Historical Examples
  • The duralumin factory is capable of meeting all Zeppelin requirements.

    Zeppelin Harry Vissering
  • The latest German airplane, the "Junker," was made entirely of duralumin.

    Creative Chemistry

    Edwin E. Slosson
  • Are their motors made with sheet steel cylinders or with duralumin engine blocks?

    The Great Drought Sterner St. Paul Meek
  • They were through, penetrating solid crystal, masonry, steel and duralumin girders.

  • But duralumin, probably, a very light, strong alloy; and what I have here is a hunting knife with a can-opener on one end!

  • duralumin is four or five times as strong as aluminum and yet weighs but little more.

    Inventions of the Great War

    A. Russell (Alexander Russell) Bond
British Dictionary definitions for duralumin


trademark a light strong aluminium alloy containing 3.5–4.5 per cent of copper with small quantities of silicon, magnesium, and manganese; used in aircraft manufacture
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
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