The term 'defibrillator output' refers to the electrical current that is delivered by a defibrillator, which is a medical device used to treat life-threatening cardiac arrhythmias. The crossword solution for this term is 'jolts, ' which is an appropriate description of the electrical current delivered by a defibrillator. Jolts are short, intense bursts of electricity that can be used to restore normal heart rhythm in a patient experiencing cardiac arrest.