Having the form of alumina.

(metallurgy) An alloy of copper with about 5% to 10% aluminium

(inorganic chemistry) A binary compound of aluminium and nitrogen (AlN), used as semiconductor.

(inorganic chemistry) The sulfate double salt of potassium and aluminium KAl(SO₄)₂; occurs naturally as alum

(inorganic chemistry) The metallic elements of the boron group, namely aluminium, gallium, indium and thallium

(inorganic chemistry) A mixed arsenide of aluminium and gallium that is used as a semiconductor

plural of aluminium bronze

(obsolete) alunite

plural of alumni association

plural of aluminum shower