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Meaning of aluminum

a•lu•mi•num

Pronunciation: (u-l'mu-num), [key]
— n.
  1. a silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished, occurring combined in nature in igneous rock, shale, clay, and most soil: used in alloys and for lightweight utensils, castings, airplane parts, etc. Abbr.: alum.; Symbol: Al; at. wt.: 26.98; at. no.: 13; sp. gr.: 2.70 at 20°C.
—adj.
  1. of, pertaining to, or containing aluminum: an aluminum frying pan.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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