ˌrapid-reˈsponse BrE AmE adjective [only before noun]
1 . relating to a person or group of people whose job is to react quickly to a dangerous or important situation, such as a military attack, and find a solution to the problem
rapid-response forces/team/unit etc
2 . relating to something which allows someone to react quickly to information they have received:
a rapid-response system
—rapid response noun [uncountable]