Definition of first responder in English:

first responder

Syllabification: first re·spond·er

noun

North American
Someone designated or trained to respond to an emergency.

Definition of first responder in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal