From Longman Dictionary of Contemporary Englishrapid-responseˌrapid-reˈsponse 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 problemrapid-response forces/team/unit etc2 relating to something which allows someone to react quickly to information they have received a rapid-response system —rapid response noun [uncountable] 
                                                    
                                                
