| alumina | (noun) any of various forms of aluminum oxide occurring naturally as corundum | Synonyms: aluminium oxide, aluminum oxide |
|---|
| aluminate | (noun) a compound of alumina and a metallic oxide | - |
|---|
| aluminium | (noun) a silvery ductile metallic element found primarily in bauxite | Synonyms: Al, aluminum, atomic number 13 |
|---|
| aluminum | (noun) a silvery ductile metallic element found primarily in bauxite | Synonyms: Al, aluminium, atomic number 13 |
|---|
| bioluminescence | (noun) luminescence produced by physiological processes (as in the firefly) | - |
|---|
| chemiluminescence | (noun) luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies | - |
|---|
| illuminance | (noun) the luminous flux incident on a unit area | Synonyms: illumination |
|---|
| illuminant | (noun) something that can serve as a source of light | - |
|---|
| illumination | (noun) painting or drawing included in a book (especially in illuminated medieval manuscripts) | Synonyms: miniature |
|---|
| (noun) the luminous flux incident on a unit area | Synonyms: illuminance |
| (noun) an interpretation that removes obstacles to understanding | Synonyms: clarification, elucidation |
| (noun) the degree of visibility of your environment | - |
| (noun) a condition of spiritual awareness; divine illumination | Synonyms: light |
| luminaire | (noun) an electrical device used to create artificial light by use of an electric lamp; all light fixtures have a fixture body and a light socket to hold the lamp and allow for its replacement | Synonyms: light fitting, light fixture |
|---|
| luminance | (noun) the quality of being luminous; emitting or reflecting light | Synonyms: brightness, brightness level, light, luminosity, luminousness |
|---|
| luminary | (noun) a celebrity who is an inspiration to others | Synonyms: guiding light, leading light, notability, notable |
|---|
| luminescence | (noun) light from nonthermal sources | Synonyms: glow |
|---|
| (noun) light not due to incandescence; occurs at low temperatures | - |
| luminism | (noun) an artistic movement in the United States that was derived from the Hudson River school; active from 1850 to 1870; painted realistic landscapes in a style that pictured atmospheric light and the use of aerial perspective | - |
|---|
| luminosity | (noun) the quality of being luminous; emitting or reflecting light | Synonyms: brightness, brightness level, light, luminance, luminousness |
|---|
| luminousness | (noun) the quality of being luminous; emitting or reflecting light | Synonyms: brightness, brightness level, light, luminance, luminosity |
|---|
| voluminosity | (noun) greatness of volume | Synonyms: fullness, voluminousness |
|---|
| voluminousness | (noun) greatness of volume | Synonyms: fullness, voluminosity |
|---|