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Hydraulic

 - 4 dictionary results

hy⋅drau⋅lic

[hahy-draw-lik, -drol-ik]
–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 pertaining to water or other liquids in motion.
4. of or pertaining to hydraulics.
5. hardening under water, as a cement.

Origin:
1620–30; < L hydraulicus < Gk hydraulikós of a water organ. See hydraulus, -ic


hy⋅drau⋅li⋅cal⋅ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hy·drau·lic   (hī-drô'lĭk)   
adj.  
  1. Of, involving, moved by, or operated by a fluid, especially water, under pressure.

  2. Able to set and harden under water, as Portland cement.

  3. Of or relating to hydraulics.


[Latin hydraulicus, from Greek hudraulikos, from hudraulis, water organ : hudro-, hudr-, hydro- + aulos, pipe, flute.]
hy·drau'li·cal·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

hydraulic

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.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

hydraulic 
1606, from Gk. hydraulikos organon "water organ," from hydr-, stem of hydor "water" (see water (n.1)) + aulos "musical instrument, hollow tube." Extended in L. authors to other kinds of water engines.
Online Etymology Dictionary, © 2001 Douglas Harper
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