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Definition of secondary source noun from the Oxford Advanced Learner's Dictionary

secondary source

noun
 
/ˈsekəndri sɔːs/
 
/ˈsekənderi sɔːrs/
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  1. a book or other source of information where the writer has taken the information from some other source and not collected it himself or herself compare primary source
See secondary source in the Oxford Advanced American DictionarySee secondary source in the Oxford Learner's Dictionary of Academic English
sunflower
noun
 
 
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Plants and trees
B2
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