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Definition of astrophysics noun from the Oxford Advanced Learner's Dictionary

astrophysics

noun
 
/ˌæstrəʊˈfɪzɪks/
 
/ˌæstrəʊˈfɪzɪks/
 [uncountable]
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  1. the scientific study of the physical and chemical structure of the stars, planets, etc.Topics Spacec2
See astrophysics in the Oxford Advanced American Dictionary
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trait
noun
 
 
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