refine
verb
1.
2.
make more complex, intricate, or richer
3.
4.
reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
Agent:
refiner Event:
refinement 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