
1) Measurement
Found on
https://www.crosswordclues.com/clue/velocimetry

Velocimetry is the measurement of the velocity of fluids, as often used to solve fluid dynamics problems, or to study fluid networks, as well as in industrial and process control applications, or in the creation of new kinds of fluid flow sensors. Methods of velocimetry include particle image velocimetry and particle tracking velocimetry, Molecula...
Found on
http://en.wikipedia.org/wiki/Velocimetry

(ve″lo-sim´ә-tre) measurement of speed, such as speed of flow. See also flowmeter.
Found on
http://www.encyclo.co.uk/local/21001
No exact match found.