duralumin

American  

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

noun

1. 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.

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Duralumin British  

/ djʊˈræljʊmɪn /

noun

1. 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

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Etymology

Origin of duralumin

1905–10; < Latin dūr ( us ) hard + alumin(um)

Example Sentences

We first built a two-inch chamber of duralumin and glass, with a diaphragm, actuated by compressed air, which could fully expand the chamber in five thousandths of a second.

From Scientific American • Jun. 28, 2012

To its duralumin bosom it clutched a precious burden: the Bell Aircraft Corp.'s rocket-propelled XS-1, a plane designed to fly more than 1,000 miles an hour.

From Time Magazine Archive

His stupendous vitality and cheerfulness drowned out the clicking of his duralumin braces, overshadowed the wheelchair itself.

From Time Magazine Archive

Weight, if made of duralumin, is 50,000 Ib.�40% less than present streamlined cars.

From Time Magazine Archive

They were constructed of a framework of duralumin girders, covered over with fabric.

From British Airships, Past, Present, and Future by Whale, George