[pi.tot tube] n, often cap P [F (tube de) Pitot, fr. Henri Pitot d. 1771 Fr. physicist] (ca. 1859) 1: a device that consists of a tube having a short right-angled bend which is placed vertically in a moving body of fluid with the mouth of the bent part directed upstream and that is used with a manometer to measure the velocity of fluid flow
2: pitot-static tube