A first responder is the first trained person to reach an emergency. Wait for the first responder.
In rural areas they are often volunteers who live nearby and carry a defibrillator. A first responder buys the minutes that decide most outcomes.
1nounfirst responderThe first trained person to reach an emergency.
“The first responder was there in four minutes on a bicycle.”
first responder is a person.
Practised in Emergency & Rescue