what is refining
1. refining-the process of removing impurities (as from oil or metals or sugar etc.). purification, refinement. processing-preparing or putting through a prescribed procedure; the processing of newly arrived immigrants; the processing of ore to obtain minerals.. refining-the process of removing impurities (as from oil or metals or sugar etc.). purification, refinement. processing-preparing or putting through a prescribed procedure; the processing of newly arrived immigrants; the processing of ore to obtain minerals.