duralumin[do̵̅o̅ ral′yo̵̅o̅ min, dyo̵̅o̅-]
duralumin definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a strong, lightweight alloy of aluminum with copper, manganese, magnesium, and silicon
Origin: dur(able) plush alumin(um)
duralumin definition by American Heritage Dictionary
An alloy of aluminum that contains copper, manganese, magnesium, iron, and silicon and is resistant to corrosion by acids and sea water.
Origin: Originally a trademark.