multistagePronunciation: /ˈmʌltɪsteɪdʒ/Definition of multistage adjective 1consisting of, occurring in, or involving several stages or processes:a multistage decision-making process 2(of a rocket) having at least two sections which contain their own motor and are jettisoned as their fuel runs out. multistage in other Oxford dictionaries Definition of multistage in the US English dictionary