[ hahy-draw-liks, -drol-iks ]
/ haɪˈdrɔ lɪks, -ˈdrɒl ɪks /

noun (used with a singular verb)

the science that deals with the laws governing water or other liquids in motion and their applications in engineering; practical or applied hydrodynamics.

Origin of hydraulics

First recorded in 1665–75; see origin at hydraulic, -ics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hydraulics

British Dictionary definitions for hydraulics


/ (haɪˈdrɒlɪks) /


(functioning as singular) another name for fluid mechanics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for hydraulics


[ hī-drôlĭks ]

The scientific study of water and other liquids, in particular their behavior under the influence of mechanical forces and their related uses in engineering.
A mechanical device or system using hydraulic components.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.