defibrillator vs defibrillate

defibrillator is a noun but defibrillate is not a noun.

Word	Noun	Adjective	Verb	Adverb
defibrillator	Yes	No	No	No
defibrillate	No	No	Yes	No

defibrillator (noun)	defibrillate (noun)
an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation

defibrillator (verb)	defibrillate (verb)
	stop the fibrillation and restore normal contractions, usually by means of electric shocks