Myocardial is an adjective that refers to the heart muscle. Some common synonyms for myocardial include cardiac, heart-related, and cardiac-related. Additionally, terms like ventricular and atrial can be used to further specify which part of the heart muscle is being referred to. Other medical terms that may be used in place of myocardial include cardiac muscle, myocardium, and heart tissue. It's important to use accurate and specific terminology when discussing medical conditions and treatments related to the heart, in order to provide clear and effective communication with healthcare professionals and patients.