Dictionary

hydraulic

hydraulic

adjective hy·drau·lic \hī-ˈdr-lik\

: operated by the pressure of a fluid

: occurring or used in a hydraulic system

Full Definition of HYDRAULIC

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 (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>
hy·drau·li·cal·ly \-li-k(ə-)lē\ adverb

Origin of HYDRAULIC

Latin hydraulicus, from Greek hydraulikos, from hydraulis hydraulic organ, from hydr- + aulos reed instrument — more at alveolus
First Known Use: 1661

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