Definition of: luster

(lus′tər) noun
1. Natural or artificial brilliancy or sheen; refulgence; gloss.
2. Brilliancy of beauty, of character, or of achievements; splendor.
3. A glaze, varnish, or enamel applied to porcelain in a thin layer, and giving it a smooth, glistening surface: common in the phrase metallic luster.
4. A dress material having a highly finished surface.
5. A source or center of light; specifically, a branched candelabrum, chandelier, or the like.
6. Mineral. The quality of the surface of a mineral as regards the kind and intensity of the light it reflects.
—v. ·tered or ·tred, ·ter·ing or ·tring v.t. To give a luster or gloss to.
—v.i. To be or become lustrous. Also lus′tre. [<F lustre <Ital. lustro <lustrare shine <L <lustrum purification]