Open English Wordnet
Verbs
(v)refinetreat or prepare so as to put in a usable condition“refine paper stock”,
“refine pig iron”,
“refine oil” (v)refine, rectifyreduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities“refine sugar” (v)refineattenuate or reduce in vigor, strength, or intensity by polishing or purifying“many valuable nutrients are refined out of the foods in our modern diet” (v)refinemake more precise or increase the discriminatory powers of“refine a method of analysis”,
“refine the constant in the equation”