Online Google Dictionary

astronautics 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˌastrəˈnôtiks/,
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The science and technology of human space travel and exploration,
  1. The science and technology of human space travel and exploration


  1. aeronautics: the theory and practice of navigation through air or space
  2. (astronautical) astronautic: of or belonging to astronauts or the science of astronautics
  3. The science of space travel