refine
verb/ʁɨfiˈnaɾ/medium
re·fi·nar
Definitions
1To remove impurities from a substance; to purify.
Crude oil is refined to produce various fuels.
The silver was refined to remove all impurities.
Common collocations
refine oilrefine sugarrefine metals
2To improve something by making small changes; to make more subtle or precise.
She refined her presentation based on the feedback.
The design was refined over several iterations.
Common collocations
refine a techniquerefine one's tasterefine an argument
Etymology
Do latim 'refīnāre' (tornar puro), de 'finis' (limite, fim).