Verb
Archaic form: A report or rumour.
Bruit comes from a French word meaning an unexpected or abnormal noise. [Dictorinary link]
In modern medical use, bruit is a vascular murmur. In other words, an abnormal sound that is generated by the 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. [Wikipedia link]