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

(inorganic chemistry) A semiconductor composed of a mixture/alloy of gallium arsenide and gallium phosphide

(InGaAs) (alternatively gallium indium arsenide, GaInAs) a ternary alloy (chemical compound) of indium arsenide (InAs) and gallium arsenide (GaAs).

a quaternary compound semiconductor material, an alloy of gallium arsenide, gallium phosphide, indium arsenide, or indium phosphide.