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Definition of legionnaires’ disease noun from the Oxford Advanced Learner's Dictionary

legionnaires’ disease

noun
 
/ˌliːdʒəˈneəz dɪziːz/
 
/ˌliːdʒəˈnerz dɪziːz/
[uncountable]
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  1. a serious lung disease caused by bacteria, especially spread by air conditioning and similar systems
ripple effect
noun
 
 
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Change, cause and effect
C2
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