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hydraulic

American  
[hahy-draw-lik, -drol-ik] / haɪˈdrɔ lɪk, -ˈdrɒl ɪk /

adjective

  1. operated by, moved by, or employing water or other liquids in motion.

  2. operated by the pressure created by forcing water, oil, or another liquid through a comparatively narrow pipe or orifice.

  3. of or relating to water or other liquids in motion.

  4. of or relating to hydraulics.

  5. hardening under water, as a cement.


hydraulic British  
/ haɪˈdrɒlɪk /

adjective

  1. operated by pressure transmitted through a pipe by a liquid, such as water or oil

  2. of, concerned with, or employing liquids in motion

  3. of or concerned with hydraulics

  4. hardening under water

    hydraulic cement

"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

hydraulic Scientific  
/ hī-drôlĭk /
  1. Operated by the pressure of water or other liquids. Hydraulic systems, such as hydraulic brakes, allow mechanical force to be transferred along curved paths (through pipes or tubes) that would be difficult for solid mechanisms, such as levers or cables, to negotiate efficiently.

  2. Relating to hydraulics.

  3. Capable of hardening under water, as cement.


hydraulic Cultural  
  1. A descriptive term for a system operated or moved by a fluid. The hydraulic jack, in which force is transmitted from a handle by means of a heavy oil, is probably the most familiar hydraulic device.


Other Word Forms

  • hydraulically adverb
  • nonhydraulic adjective
  • unhydraulic adjective

Etymology

Origin of hydraulic

1620–30; < Latin hydraulicus < Greek hydraulikós of a water organ. See hydraulus, -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It automatically deploys in flight when both engines lose power or if all three hydraulic systems register critically low pressure, supplying limited power to keep essential flight systems operational.

From BBC

Last year, Apple apologized after an iPad Pro ad that showed a hydraulic press crushing musical instruments such as a piano and other creative tools before the thin device was revealed, sparked backlash.

From Los Angeles Times

Eight crews, three 4x4 brigade response vehicles and a hydraulic aerial platform are in attendance, crewed by around 50 firefighters.

From BBC

A bucket truck, also known as a cherry picker, is a vehicle equipped with a hydraulic lift system and an extendable arm that ends in a bucket where a person can stand.

From Los Angeles Times

That upgraded car, jacked with hydraulics, could also dance, which may explain the little mirrored disco ball dangling within the narrow void of Rosales’ sculpture.

From Los Angeles Times