[luhs-ter] 
| 1. | the state or quality of shining by reflecting light; glitter, sparkle, sheen, or gloss: the luster of satin. |
| 2. | a substance, as a coating or polish, used to impart sheen or gloss. |
| 3. | radiant or luminous brightness; brilliance; radiance. |
| 4. | radiance of beauty, excellence, merit, distinction, or glory: achievements that add luster to one's name. |
| 5. | a shining object, esp. one used for decoration, as a cut-glass pendant or ornament. |
| 6. | a chandelier, candleholder, etc., ornamented with cut-glass pendants. |
| 7. | any natural or synthetic fabric with a lustrous finish. |
| 8. | Also called metallic luster. an iridescent metallic film produced on the surface of a ceramic glaze. |
| 9. | Mineralogy. the nature of a mineral surface with respect to its reflective qualities: greasy luster. |
| 10. | to finish (fur, cloth, pottery, etc.) with a luster or gloss. |
| 11. | to be or become lustrous. |
| luster (lŭs'tər) Pronunciation Key
The shine from the surface of a mineral. Luster is important in describing different kinds of minerals. It is usually characterized as metallic, glassy, pearly, or dull. |