the science or practice of building and flying aircraft
NAmE//ˌɛrəˈnɔt̮ɪkl//, NAmE//ˌɛrəˈnɑt̮ɪkl//
adjective an aeronautical engineerSee aeronautics in the Oxford Advanced Learner's DictionaryCheck pronunciation: aeronautics
Definition of aeronautics noun from the Oxford Advanced American Dictionary