[vee-loh-sim-uh-ter, vel-oh-] 
| any of various instruments for measuring velocity, as of a wave in water or of sound in air. |
| ve·lo·cim·e·ter (vē'lō-sĭm'ĭ-tər, věl'ō-) n. A device for measuring the speed of sound in water. [veloci(ty) + -meter.] |
| velocimeter (vē'lō-sĭm'ĭ-tər, věl'ō-) Pronunciation Key
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. |
loʊˈsɪm