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

epidemiology

noun
 
/ˌepɪˌdiːmiˈɒlədʒi/
 
/ˌepɪˌdiːmiˈɑːlədʒi/
[uncountable]
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  1. the scientific study of the spread and control of diseases
    Word Originlate 19th cent.: from Greek epidēmia ‘prevalence of disease’ + -logy.
See epidemiology in the Oxford Advanced American DictionarySee epidemiology in the Oxford Learner's Dictionary of Academic English
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