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

 

counterterrorism

 noun
noun
BrE BrE//ˌkaʊntəˈterərɪzəm//
 
; NAmE NAmE//ˌkaʊntərˈterərɪzəm//
 
[uncountable] Terrorism
 
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action taken to prevent the activities of political groups who use violence to try to achieve their aims See related entries: Terrorism
See the Oxford Advanced American Dictionary entry: counterterrorism