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1. (used with a sing. verb) The branch of science that deals with the dynamics of fluids, especially incompressible fluids, in motion.
2. (used with a pl. verb) The dynamics of fluids in motion.

hy′dro·dy·nam′i·cist (-ĭ-sĭst) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a specialist in hydrodynamics
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
When the World War II-era German battleship Bismark was found in 1989 about 15,700 feet down, the impact of hitting the ocean floor drove the bottom deck up about one level into the vessel, and compressing water inside the ship blew out plating on its hull, Sean Kery, a hydrodynamicist who co-chairs a marine forensic committee for the Society of Naval Architects and Marine Engineering, told The Florida Times-Union (http://bit.ly/1Ohn0Wy).
He was a hydrodynamicist in the Fluid Mechanics Group, Lockheed Missiles and Space Co., (1989 - 1994), responsible for hydrodynamic analysis of cavitation and super-cavitation during the underwater launch of the Trident missiles.
As a hydrodynamicist, he was among the first to develop a numerical code for ocean wave diffraction around large objects in the sea.