0 present participle of wipe
1 to slide something, especially a piece of cloth, over the surface of something else, in order to remove dirt, food, or liquid:
They dressed and undressed themselves and used human toilets, wiping themselves, flushing, even asking to go potty during lessons and naptimes.
All the project's interviewers observed much tending of people as children: wiping hands, fixing bibs, and putting food directly into their mouths.
As the wiping is not necessary, there is no danger to fragment the solar cells or the cover-glasses.