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单词 astronomy
释义

WordReference Random House Learner's Dictionary of American English © 2024
as•tron•o•my /əˈstrɑnəmi/USA pronunciation   n. [uncountable]
  1. Astronomythe science that deals with the moon, planets, stars, and the universe beyond earth.
See -nom-1, -astro-.
WordReference Random House Unabridged Dictionary of American English © 2024
as•tron•o•my  (ə stron′ə mē),USA pronunciation n. 
  1. Astronomythe science that deals with the material universe beyond the earth's atmosphere.
  • Greek. See astro-, -nomy
  • Latin astronomia
  • Anglo-French)
  • Middle English astronomie (1175–1225

Collins Concise English Dictionary © HarperCollins Publishers::
astronomy /əˈstrɒnəmɪ/ n
  1. the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics
Etymology: 13th Century: from Old French astronomie, from Latin astronomia, from Greek; see astro-, -nomy
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