refinement

noun

1. a highly developed state of perfection; having a flawless or impeccable quality

   noun.state

   Examples

   I admired the exquisite refinement of his prose.

   Synonyms cultivation culture finish polish

   Source: WordNet 3.0

2. the result of improving something

   noun.event

   Examples

   He described a refinement of this technique.

   Synonyms elaboration

   Source: WordNet 3.0

3. the process of removing impurities (as from oil or metals or sugar etc.)

   noun.process

   Synonyms purification refining

   Source: WordNet 3.0

4. a subtle difference in meaning or opinion or attitude

   noun.communication

   Synonyms nicety nuance shade subtlety

   Source: WordNet 3.0

5. the quality of excellence in thought and manners and taste

   noun.attribute

   Examples

   A man of intellectual refinement.

   Synonyms civilisation civilization

   Source: WordNet 3.0

6. The act of refining, or the state of being refined; as, the <i>refinement</i> or metals; <i>refinement</i> of ideas.

   noun

   Source: webster1913