hydraulic
adjective
hy·drau·lic hī-ˈdrȯ-lik 
1
: operated, moved, or effected by means of water
2
a
: of or relating to hydraulics
hydraulic engineer
b
: of or relating to water or other liquid in motion
hydraulic erosion
3
: operated by the resistance offered or the pressure transmitted when a quantity of liquid (such as water or oil) is forced through a comparatively small orifice or through a tube
hydraulic brakes
4
: hardening or setting under water
hydraulic cement
hydraulically
hī-ˈdrȯ-li-k(ə-)lē
adverb 
Did you know?
By means of a hydraulic lift, the driver can lift the bed of a dump truck with the touch of a button. He might also repair the hydraulic steering, the hydraulic brake, or the hydraulic clutch—all of which, like the lift that holds everything up, take advantage of the way liquids act under pressure. Somewhat like a pulley or a lever, a hydraulic system magnifies the effect of moderate pressure exerted over a longer distance into powerful energy for a shorter distance.
Example Sentences
Recent Examples on the Web All up, the area offers three sofas, a sundeck and views of the hydraulic swim platform below. 
Rachel Cormack, Robb Report, 5 July 2022 Think about heavy vehicles and all the suspension systems, hydraulic systems, and so on. Isaac Chotiner, The New Yorker, 21 Apr. 2022 Made of steel and aluminum, the vessel will be fitted with huge exterior spaces in order to encourage outdoor living, as well as a hydraulic swimming platform that provides easy access to the ocean. Tamara Hardingham-gill, CNN, 13 Dec. 2021 Dan + Shay sang from a terrifying height on a hydraulic platform. Jon Freeman, Rolling Stone, 11 Nov. 2021 Moonflower’s on-deck pool features a hydraulic mechanism that raises the teak bottom flush with the deck when the pool is not in use. Julia Zaltzman, Robb Report, 5 Aug. 2022 The silos are built from ground level and raised with a hydraulic lift. Mckenna Oxenden, Baltimore Sun, 23 May 2022 A day before David Fouts’ body was found, Hopkins bought two blue tarps, a 6,4000-pound lifting sling, a 500-pound hydraulic lift and white zip ties at a tools store in Muncie, investigators said. Sarah Nelson, The Indianapolis Star, 20 Apr. 2022 Rescue crews had to use a hydraulic lift to remove the woman from the vehicle. Sofia Saric, BostonGlobe.com, 16 Apr. 2022 See More
Rachel Cormack, Robb Report, 5 July 2022 Think about heavy vehicles and all the suspension systems, hydraulic systems, and so on. Isaac Chotiner, The New Yorker, 21 Apr. 2022 Made of steel and aluminum, the vessel will be fitted with huge exterior spaces in order to encourage outdoor living, as well as a hydraulic swimming platform that provides easy access to the ocean. Tamara Hardingham-gill, CNN, 13 Dec. 2021 Dan + Shay sang from a terrifying height on a hydraulic platform. Jon Freeman, Rolling Stone, 11 Nov. 2021 Moonflower’s on-deck pool features a hydraulic mechanism that raises the teak bottom flush with the deck when the pool is not in use. Julia Zaltzman, Robb Report, 5 Aug. 2022 The silos are built from ground level and raised with a hydraulic lift. Mckenna Oxenden, Baltimore Sun, 23 May 2022 A day before David Fouts’ body was found, Hopkins bought two blue tarps, a 6,4000-pound lifting sling, a 500-pound hydraulic lift and white zip ties at a tools store in Muncie, investigators said. Sarah Nelson, The Indianapolis Star, 20 Apr. 2022 Rescue crews had to use a hydraulic lift to remove the woman from the vehicle. Sofia Saric, BostonGlobe.com, 16 Apr. 2022 See More Word History
Etymology
Latin hydraulicus, from Greek hydraulikos, from hydraulis hydraulic organ, from hydr- + aulos reed instrument — more at alveolus
First Known Use
1661, in the meaning defined at sense 1
Phrases Containing hydraulic
Kids Definition
hydraulic
adjective
hy·drau·lic hī-ˈdrȯ-lik
1
: operated, moved, or brought about by means of water
hydraulic pressure
2
: operated by liquid forced through a small hole or through a tube
hydraulic brakes