supersonicPronunciation: /suːpəˈsɒnɪk, sjuː-/Translate supersonic | into French | into German | into Italian | into Spanish Definition of supersonic adjective involving or denoting a speed greater than that of sound: the tip speed of the upwind blade becomes supersonic supersonic aircraftDerivatives supersonically adverb supersonic in other Oxford dictionaries Definition of supersonic in the US English dictionary
