cardiopathy, heart condition, heart disease - a disease of the heart

flutter - abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block

cantering rhythm, gallop rhythm - cardiac rhythm characterized by the presence of an extra sound; can indicate a heart abnormality

atrial fibrillation - fibrillation of the muscles of the atria of the heart

bradycardia - abnormally slow heartbeat

Adams-Stokes syndrome, atrioventricular block, heart block, Stokes-Adams syndrome - recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat

premature ventricular contraction, PVC - irregularity of cardiac rhythm; recurrent occurrences can be a precursor of ventricular fibrillation

tachycardia - abnormally rapid heartbeat (over 100 beats per minute)

ventricular fibrillation - fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest