counterterrorism /ˈkaʊntɚˈterɚˌɪzəm/ noun Learner's definition of COUNTERTERRORISM
[noncount]
: actions by a group, army, etc., that are done to prevent terrorist attacks and destroy terrorist networks反恐怖行动；反恐怖主义行动 —
often used before another noun常用于另一名词前 — counterterrorist
/ˈkaʊntɚˈterɚrɪst/ adjective