noun (n)

• a protective covering over or beside a wheel to protect the upper part of a vehicle from splashes of mud(noun.artifact)

  source: wordnet30
• protective covering consisting of a panel to protect people from the splashing water or mud etc.(noun.artifact)

  Synonym:
  dashboard, splashboard
  

  source: wordnet30
• One who, or that which, splashes.(noun)

  source: webster1913