rip-rap

World English Dictionary
rip-rap
 
n
civil engineering broken stones loosely deposited in water or on a soft bottom to provide a foundation and protect a riverbed or river banks from scour: used for revetments, embankments, breakwaters, etc
 
[C19: reduplication of rap1]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

rip-rap
"loose stone thrown down in water or soft ground as foundation," 1822, Amer.Eng., from earlier nautical meaning "stretch of rippling water" (often caused by underwater elevations), 1669, probably of imitative origin.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature