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

silicosis

noun
 
/ˌsɪlɪˈkəʊsɪs/
 
/ˌsɪlɪˈkəʊsɪs/
[uncountable] (medical)
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  1. a serious lung disease caused by breathing in dust containing silica
See silicosis in the Oxford Advanced American Dictionary
efficacy
noun
 
 
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