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.

plural of aluminium

Alternative form of aluminum shower

A chemical compound composed of aluminium, silicon and oxygen, chemical formula Al₂SiO₅, found in minerals and clays in several forms and used commercially as food additive E559 as an anti-caking agent.

plural of aluminium silicate

(inorganic chemistry) The solid, Al₂O₃, commonly known as alumina; it occurs as bauxite, sapphire, ruby and other forms; it is used in the manufacture of ceramics

(inorganic chemistry) The hydrated form of alumina, having the formula Al(OH)₃; it reacts with bases to form aluminates.

(Australia, Britain, New Zealand) A very thin, pliable, easily torn sheet of aluminium used for cooking, packaging, cosmetics, and insulation.

(inorganic chemistry) AlH, formed when aluminium is heated at 1500°C in an atmosphere of hydrogen.

(inorganic chemistry) AlCl, only exists in the gas phase when AlCl₃ is heated with aluminium.