velocimeter

[ vee-loh-sim-uh-ter, vel-oh- ]

/ ˌvi loʊˈsɪm ə tər, ˌvɛl oʊ- /

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noun

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

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Origin of velocimeter

First recorded in 1842; veloci(ty) + -meter

Words nearby velocimeter

vellum, vellus hair, Velma, velobinding, veloce, velocimeter, velocipede, velociraptor, velocity, velocity head, velocity microphone

Scientific definitions for velocimeter

velocimeter

[ vē′lō-sĭm′ĭ-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.