D defs.my
Entry 1 sense Webster, 1913

Rhysimeter

· Rhy·sim·e·ter · IPA
01 n. An instrument, acting on the principle of Pitot's tube, for measuring the velocity of a fluid current, the speed of a ship, etc.
  1. 1.
    An instrument, acting on the principle of Pitot's tube, for measuring the velocity of a fluid current, the speed of a ship, etc.