Definition of "hydraulic" []

• Of, involving, moved by, or operated by a fluid, especially water, under pressure. (adjective)
• Able to set and harden under water, as Portland cement. (adjective)
• Of or relating to hydraulics. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Weber, finds the source of Oriental Despotism (1957) in what he defines as the hydraulic society."
• "When the vessels have discharged all their precious liquid, the cauldron into which the metal has been poured is swung in mid-air by that unseen, effortless power which we know as hydraulic pressure, through the arc of"
• "The process is known as hydraulic fracturing or "fracking.""