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mudguard

[muhd-gahrd]
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noun
  1. Also called mud flap. splash guard.
  2. fender(def 3).

Origin of mudguard

First recorded in 1885–90; mud + guard

splash guard

noun
  1. a large flap behind a rear tire to prevent mud, water, etc., from being splashed on the following vehicle.

Origin of splash guard

First recorded in 1925–30
Also called mudguard, mud flap.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for mud-flaps

mudguard

noun
  1. a curved part of a motorcycle, bicycle, etc, attached above the wheels to reduce the amount of water or mud thrown up by themUS and Canadian name: fender
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