Definitions

1. verb

to clean something before the final cleaning process

“The factory will preclean the machinery before applying the final coat of paint.”

2. verb

to make something ready for a cleaning process

“The technician will preclean the engine before the car goes through the detailing process.”

3. noun

a preliminary cleaning or the process of making something ready for cleaning

“The preclean of the surfaces is essential before applying the new paint.”