Bruit (English: /ˈbruːt/ or /ˈbruːi/,[a] from French [bʁui], "noise"), also called vascular murmur, is the abnormal sound generated by turbulent flow of blood in an artery due to either an area of partial obstruction; or a localized high rate of blood flow through an unobstructed artery. The bruit may be heard ("auscultated") by pressing a stethoscope to the skin over the turbulent flow and listening. Most bruits occur only in systole, so the bruit is intermittent and its frequency dependent on the heart rate. Anything increasing the blood flow velocity such as fever, anemia, hyperthyroidism, or physical exertion, can increase the amplitude of the bruit.
^Several major dictionaries enter only /ˈbruːt/ as the pronunciation of the English word (naturalized from the French word), although another notes that /ˈbruːi/ and /bruːˈiː/ are also common, and others give only /ˈbruːi/ for the cardiac sense.