Clinical death is a lack of blood pulse and breathing. Hence the modern meaning of "resuscitation" for "rebooting the heart". It hasn't been a synonym for "dea

Clinical death is a lack of blood pulse and breathing. Hence the modern meaning of "resuscitation" for "rebooting the heart". It hasn't been a synonym for "death" for a few decades. "Brain death" is a total and irreversible loss of brain function.