Anginal is a medical term used to describe chest pain or discomfort caused by inadequate blood flow and oxygen supply to the heart muscles. Some synonyms of anginal include angina pectoris, coronary heart disease, ischemic heart disease, acute coronary syndrome, chest tightness, and cardiac chest pain. These terms are often used interchangeably to describe the symptoms associated with heart disease. Angina pectoris usually refers to stable angina, while acute coronary syndrome describes unstable angina or a heart attack. Coronary heart disease and ischemic heart disease describe the underlying condition that leads to anginal symptoms. Medical professionals use these synonyms to accurately diagnose and treat heart disease.