refine

To reduce to a pure state; purify.

To remove by purifying.

To free from coarse, unsuitable, or immoral characteristics.

To become free of impurities.

To acquire polish or elegance.

To use precise distinctions and subtlety in thought or speech.

To bring or reduce to a pure state; free from impurities; free from sediment; defecate; clarify; fine: as, to refine liquor, sugar, or petroleum.

In metallurgy, to bring into a condition of purity as complete as the nature of the ore treated will allow.

To purify from what is gross, coarse, debasing, low, vulgar, inelegant, rude, clownish, and the like; make elegant; raise or educate, as the taste; give culture to; polish: as, to refine the manners, taste, language, style, intellect, or moral feelings.

To become pure; be cleared of feculent matter.