aluminum

[uh-loo-muh-nuhm]
noun
1.
Chemistry. 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. Abbreviation: alum.; Symbol: Al; atomic weight: 26.98; atomic number: 13; specific gravity: 2.70 at 20°C.
adjective
2.
of, pertaining to, or containing aluminum: an aluminum frying pan.
Also, especially British, aluminium.


Origin:
1812; < Neo-Latin, alteration, by Humphry Davy, of alumium, which was first proposed; aluminium formed after other metals in -ium. See alumina, -ium

aluminic [al-yuh-min-ik] , adjective
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World English Dictionary
aluminium or (US), (Canadian) aluminum (ˌæljʊˈmɪnɪəm, əˈluːmɪnəm)
 
n
a light malleable ductile silvery-white metallic element that resists corrosion; the third most abundant element in the earth's crust (8.1 per cent), occurring only as a compound, principally in bauxite. It is used, esp in the form of its alloys, in aircraft parts, kitchen utensils, etc. Symbol: Al; atomic no: 13; atomic wt: 26.9815; valency: 3; relative density: 2.699; melting pt: 660.45°C; boiling pt: 2520°C
 
aluminum or (US), (Canadian) aluminum
 
n

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Etymonline
Word Origin & History

aluminum
1812, coined by English chemist Sir Humphry Davy (1778-1829), from L. alumen "alum" (see alum). Davy originally called it alumium (1808), then amended this to aluminum, which remains the U.S. word, but British editors in 1812 further amended it to aluminium, the modern preferred
British form, to better harmonize with other element names (sodium, potassium, etc.).
"Aluminium, for so we shall take the liberty of writing the word, in preference to aluminum, which has a less classical sound." ["Quarterly Review," 1812]
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

aluminum a·lu·mi·num (ə-lōō'mə-nəm)
n.
Symbol Al
A silvery-white, ductile metallic element, found chiefly in bauxite. A good conductor, it is used in light, corrosion-resistant alloys. Atomic number 13; atomic weight 26.98; melting point 660.3°C; boiling point 2,519°C; specific gravity 2.70; valence 3.

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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
aluminum   (ə-l'mə-nəm)  Pronunciation Key 
Symbol Al A lightweight, silvery-white metallic element that is ductile, is found chiefly in bauxite, and is a good conductor of electricity. It is the most abundant metal in the Earth's crust and is used to make a wide variety of products from soda cans to airplane components. Atomic number 13; atomic weight 26.98; melting point 660.2°C (1,220.36°F); boiling point 2,467°C; specific gravity 2.69; valence 3. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
How about who ever let the aluminum plant build an above ground, open air,
  storage pool held in only by an earthen wall.
If you have the time, it is a comfortable alternative to a crowded aluminum
  tube.
Aluminum cans are easy to collect and recycle, but many people throw them out
  anyway.
In preparation for transport, the prospectors then wrapped the sections in
  layers of tissue paper, aluminum foil and plaster.
Images for aluminum
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