1. screenwash - Noun
2. screenwash - Verb
screenwash (usually uncountable, plural screenwashes)
A fluid used to clean the windscreen of a motor vehicle; windshield washer fluid.
screenwash (third-person singular simple present screenwashes, present participle screenwashing, simple past and past participle screenwashed)
(paleontology) To sift sediment through open boxes with screens at the bottom, as a technique for finding microfossils.