Also means
counter-terrorism
Usage Note
Antiterrorista is an invariable-ending adjective (same for masculine and feminine) that changes only in number: antiterroristas. It commonly modifies nouns in security and law-enforcement contexts: ley antiterrorista (anti-terrorism law), brigada antiterrorista (anti-terrorist squad). The prefix anti- attaches without a hyphen in standard Spanish orthography. It is exclusively formal and journalistic in register.
Examples
"El gobierno aprobó una nueva ley antiterrorista."
Natural Translation
The government passed a new anti-terrorist law.

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