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aluminum Syllabification: a·lu·mi·num
Pronunciation: /əˈlo͞omənəm/
(British aluminiumˌalyəˈminēəm)

Definition of aluminum in English:


The chemical element of atomic number 13, a light silvery-gray metal. (Symbol: Al)

Aluminum is the most abundant metal in the earth’s crust and is obtained mainly from bauxite. Its lightness, resistance to corrosion, and strength (especially in alloys) have led to widespread use in domestic utensils, engineering parts, and aircraft construction

Example sentences
  • Modern formal gardens use water in geometric pools and metals like steel and aluminium in structures.
  • The other way is to coat the steel surface with a metal compatible with aluminum.
  • Officials said materials made of plastic, aluminum, glass and metals will have to be recycled.


Early 19th century: from alumin(a) + (i)um.

Definition of aluminum in:

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Word of the day fortissimo
Pronunciation: fôrˈtisəˌmō
(especially as a direction) very loud or loudly