Definitions for "First responder"
Local police, fire, and emergency medical personnel who arrive first on the scene of an incident and take action to save lives, protect property, and meet basic human needs. This term has increasingly been broadened in recent years to include bystanders who perform search and rescue, transportation, and communication during the incident.
a local volunteer who undertakes medical training in order to be able to provide life-saving treatment to people within the community who are critically injured or ill prior to the arrival of an ambulance
a lower level BLS provider than an EMT
a person in a rural or remote location, trained in advanced first aid, including the use of automatic defibrillation
An individual who provides immediate support services for the protection and reservation of life, property, evidence, and the environment.