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hydraulic ram

 - 2 dictionary results

hydraulic ram

–noun
a device by which the energy of descending water is utilized to raise a part of the water to a height greater than that of the source.

Origin:
1800–10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hydraulic ram  
n.  
  1. A water pump in which the downward flow of naturally running water is intermittently halted by a valve so that the flow is forced upward through an open pipe into a reservoir.

  2. The large output piston of a hydraulic press.

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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