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TOEFL IELTS BNC: 10702 COCA: 6469

astronomy

noun
/əˈstrɒnəmi/
/əˈstrɑːnəmi/
[uncountable]
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  1. the scientific study of the sun, moon, stars, planets, etc.天文学Topics Spaceb2
    Oxford Collocations DictionaryAstronomy is used after these nouns:
    • radio
    See full entry
    Word OriginMiddle English (also denoting astrology): from Old French astronomie, from Latin astronomia, from Greek, from astronomos (adjective) ‘star-arranging’.

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