wiper

[ wahy-per ]
/ ˈwaɪ pər /

noun

a person or thing that wipes.
the thing with which something is wiped, as a towel, handkerchief, or squeegee.
Electricity. the portion of a selector or other similar device that makes contact with the terminals of a bank.
Also wipe. Machinery. a projection or partial cam, as on a rotating shaft, moving to lift or dislodge another part, especially so as to let it drop when released.

Origin of wiper

First recorded in 1545–50; wipe + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for wiper

British Dictionary definitions for wiper

wiper

/ (ˈwaɪpə) /

noun

any piece of cloth, such as a handkerchief, towel, etc, used for wiping
a cam rotated to ease a part and allow it to fall under its own weight, as used in stamping machines, etc
electrical engineering a movable conducting arm, esp one in a switching or selecting device, that makes contact with a row or ring of contacts
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