US standard form of aluminium foil.

(inorganic chemistry) Alternative spelling of aluminium hydroxide

Alternative spelling of lithium aluminium hydride

(chemistry, archaic) gallium

plural of aluminate

(physics) The only stable isotope of aluminium, ²⁷₁₃Al, having thirteen protons and fourteen neutrons

(chemistry) An intermetallic compound of titanium and aluminium, TiAl, used as a heat-resistant material in high-speed aircraft

(chemistry) Any intermetallic compound of aluminium and a more electropositive element

plural of aluminide

Used other than figuratively or idiomatically: see aluminum, shower. / (figuratively, aviation) The result of a midair collision of two aircraft.