dump truck or dump·truck WORD ORIGIN noun a usually open-topped truck having a body that can be tilted to discharge its contents, as sand or gravel, through an open tailgate. Liberaldictionary.com
Origin of dump truck An Americanism dating back to 1925–30 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for dump truck dump truck dumper-truck (ˈdʌmpə-) noun a small truck used on building sites, having a load-bearing container at the front that can be tipped up to unload the contents 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