a person who is certified to provide medical care in emergencies before more highly trained medical personnel arrive on the scene:
a firefighter trained as a first responder.
a person who is trained to provide basic life support in a medical emergency

a certified, often volunteer, emergency, medical, or law enforcement officer who is the first to arrive at an accident or disaster scene

First Responders have completed training in care beyond first aid but are not emergency medical technicians
Word Origin

Usage Note

often uppercase


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