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

activation

noun
 
/ˌæktɪˈveɪʃn/
 
/ˌæktɪˈveɪʃn/
[uncountable]
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  1. the act of making something such as a device or chemical process start working
    • The activation of several target genes results in two major effects.
    • to trigger/inhibit/block the activation of something
    Topics Engineeringc1, Physics and chemistryc1
See activation in the Oxford Learner's Dictionary of Academic English
ripple effect
noun
 
 
From the Topic
Change, cause and effect
C2
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