A
windscreen wiper (
Commonwealth English) or
windshield wiper (
American English) is a device used to remove rain, snow, ice, washer fluid, water, or other debris from a
vehicle's front window. Almost all
motor vehicles, including
cars,
trucks,
buses,
train locomotives, and
watercraft with a
cabin—and some
aircraft—are equipped with one or more such wipers, which are usually a legal requirement.