duralumin

[ doo-ral-yuh-min, dyoo- ]
/ dʊˈræl yə mɪn, dyʊ- /
|

noun

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)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for duralumin

Duralumin

/ (djʊˈræljʊmɪn) /

noun

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