ALUMINIUM
aluminum, aluminium, Al, atomic number
(noun) a silvery ductile metallic element found primarily in bauxite
Source: WordNet® 3.1
Etymology
Noun
aluminium (countable and uncountable, plural aluminiums)
A light, silvery metal extracted from bauxite, and a chemical element (symbol Al) with an atomic number of 13.
(countable) A single atom of this element.
(slang) Aircraft or other machinery made partially or wholly of aluminium.
Usage notes
• For information on the origins of the two spellings, see the Wikipedia article.
Synonyms
• alumium (obsolete)
• E173 when used as a food colouring
Source: Wiktionary
Al`u*min"i*um, n. Etym: [L. alumen. See Alum.] (Chem.)
Definition: The metallic base of alumina. This metal is white, but with a
bluish tinge, and is remarkable for its resistance to oxidation, and
for its lightness, pertaining a specific gravity of about 2.6. Atomic
weight 27.08. Symbol Al. Aluminium bronze or gold, a pale gold-
colored alloy of aluminium and copper, used for journal bearings,
etc.
Source: Webster’s Unabridged Dictionary 1913 Edition