refining
verb
Definitions
To purify; reduce to a fine, unmixed, or pure state; to free from impurities.
Example: to refine gold
To become pure; to be cleared of impure matter.
To purify of coarseness, vulgarity, inelegance, etc.; to polish.
Example: a refined style
To improve in accuracy, delicacy, or excellence.
noun
Definitions
Refinement (process of refining)