refinement
re.fine.ment \ri-'fi-n-m*nt\ n 1: the action or process of refining 2: the quality or state of being refined : CULTIVATION 3a: a refined feature or method 3b: SUBTLETY 3c: a contrivance or device intended to improve or perfect
re.fine.ment \ri-'fi-n-m*nt\ n 1: the action or process of refining 2: the quality or state of being refined : CULTIVATION 3a: a refined feature or method 3b: SUBTLETY 3c: a contrivance or device intended to improve or perfect