refine

verb

1.
improve or perfect by pruning or polishing
Agent:
refiner
Result:
refinement
2.
make more complex, intricate, or richer
3.
treat or prepare so as to put in a usable condition
Agent:
refiner
4.
reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
Agent:
refiner
5.
attenuate or reduce in vigor, strength, or intensity by polishing or purifying
6.
make more precise or increase the discriminatory powers of
Result:
refinement
Derived from:
refinement