Definition: The term 'anuresis' comes from Greek meaning, "to be an abnormal or peculiar." It refers to a condition where the heart fails to pump effectively due to blockage in the valves, causing the blood to stagnate and not move efficiently through the body. Definition: Anuresis is when the heart cannot pump properly. The blood supply is blocked, causing it to stay stagnant and unable to circulate throughout the body. Symptoms may include chest pain or discomfort, shortness of breath, and a feeling of lightheadedness or fainting. This condition can be life-threatening if left untreated, requiring immediate medical attention.