1. to clean something beforehand or in preparation for a subsequent cleaning or process
Usage: third person singular present tense of 'preclean'

Examples

• She precleans the dishes before putting them in the dishwasher.
• The factory precleans the raw materials to remove surface contaminants.
• He precleans the car windows with a damp cloth before applying the protective coating.
• The technician precleans the equipment to ensure accurate test results.
• Many recipes recommend that you preclean vegetables under running water.