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The definition of refinement

4 Definitions of: refinement

    1. noun, the act of refining or the state of being refined
    2. noun, a fine or delicate point, distinction, or expression; a subtlety
    3. noun, fineness or precision of thought, expression, manners, etc; polish or cultivation
    4. noun, a device, change, adaptation, etc, designed to improve performance or increase efficiency
    5. Show me some examples of this word: refinement
    6. Show me the etymology of the word: refinement

From Collins