'Pitot tube' definitions:

Measuring instrument consisting of a right-angled tube with an open end that is directed in opposition to the flow of a fluid and used to measure the velocity of fluid flow [syn: Pitot tube, Pitot]

Measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed [syn: Pitot-static tube, Pitot head, Pitot tube]