• (murmur) An auscultated finding describing a series of audible vibrations of varying intensity (loudness), frequency (pitch), quality, configuration, and duration created by turbulent blood flow in the heart or surrounding vessels.
  ACC/AHA Clinical Data Terminology
  American College of Cardiology and American Heart Association , 2020
• A periodic humming or blowing sound heard on auscultation of the heart that can indicate the presence of cardiac disease; murmurs are the result of vibrations caused by the turbulent flow of blood in the heart or great vessels. Murmurs are characterized according to the area of generation (mitral, aortic, tricuspid, or pulmonary) and according to the period of the cycle (systolic or diastolic).
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• An extra or unusual sound heard during a heartbeat caused vibrations resulting from the flow of blood through the heart.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• An extra or unusual sound heard during the heartbeat. A murmur may or may not be a sign of a problem in the heart.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• Heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by HEART AUSCULTATION, and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc).
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Heart murmurs are sounds during your heartbeat cycle - such as whooshing or swishing - made by turbulent blood in or near your heart. These sounds can be heard with a stethoscope. A normal heartbeat makes two sounds like "lubb-dupp" (sometimes described as "lub-DUP"), which are the sounds of your heart valves closing.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research