[ vee-loh-sim-uh-ter, vel-oh- ]
/ ˌvi loʊˈsɪm ə tər, ˌvɛl oʊ- /


any of various instruments for measuring velocity, as of a wave in water or of sound in air.

Nearby words

  1. vellum,
  2. vellus,
  3. velma,
  4. velo binding,
  5. veloce,
  6. velocipede,
  7. velociraptor,
  8. velocity,
  9. velocity head,
  10. velocity microphone

Origin of velocimeter

First recorded in 1842; veloci(ty) + -meter Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for velocimeter


[ vē′lō-sĭmĭ-tər, vĕl′ō- ]

A device that utilizes the Doppler effect to measure the speed of sound in water. Developed by the US Army Corps of Engineers, a velocimeter transmits a pulse of sound through water and measures its echo for changes in either pitch or frequency. Oceanographers employ velocimeters to study the interior structure of breaking waves; they are also used in hydraulic engineering and to study fluid flow.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.