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English definition of “cumulative”

cumulative

adjective uk   /ˈkjuː.mjʊ.lə.tɪv/ us    /-t̬ɪv/
increasing by one addition after another: The cumulative effect of using so many chemicals on the land could be disastrous.Also, extra, and in addition
cumulatively
adverb uk   /-li/ us  
Also, extra, and in addition
(Definition of cumulative from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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