Synonyms for Wiper (same or very similar meaning)
WordNet sense 1 (contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet):
contact arm, wiper armWordNet sense 2 (a mechanical device that cleans the windshield):
windshield wiper, windscreen wiper, wiper bladeFrom the ODE community, based on WordNetadd/edit