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Aluminium

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al⋅u⋅min⋅i⋅um

  [al-yuh-min-ee-uhm]
Use Aluminium in a Sentence
–noun, adjective Chiefly British.
aluminum.
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a⋅lu⋅mi⋅num

  [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; < NL, alter., by Humphry Davy, of alumium, which was first proposed; aluminium formed after other metals in -ium. See alumina, -ium

Related forms:
al⋅u⋅min⋅ic  [al-yuh-min-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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al·u·min·i·um   (āl'yə-mĭn'ē-əm)   
n.   Chiefly British
Variant of aluminum.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

aluminum 
1812, coined by 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, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: al·u·min·i·um
Pronunciation: "al-y&-'min-E-&m
Function: noun
chiefly British : ALUMINUM

Main Entry: alu·mi·num
Pronunciation: &-'lü-m&-n&m
Function: noun
often attributive : a bluish silver-white malleableductile light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation and is the most abundant metal in the earth's crust where italways occurs in combination —symbol Al; —see ELEMENT table
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

aluminum a·lu·mi·num (ə-l&oomacr;'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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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