| DURALUMINIUM | • duraluminium n. Synonym of duralumin. • DURALUMINIUM n. a strong, light, aluminium alloy containing copper, also DURAL, DURALUMIN. |
| ILLUMINANCES | • illuminances n. Plural of illuminance. • ILLUMINANCE n. the act of illuminating. |
| ILLUMINATING | • illuminating adj. Providing illumination or light. • illuminating adj. (Figuratively) Providing clarification or explanation; educational, revealing. • illuminating v. Present participle of illuminate. |
| ILLUMINATION | • illumination n. The act of illuminating, or supplying with light; the state of being illuminated. • illumination n. Festive decoration of houses or buildings with lights. • illumination n. Adornment of books and manuscripts with colored illustrations. See illuminate (transitive verb). |
| ILLUMINATIVE | • illuminative adj. Of, capable of, or causing illumination. • ILLUMINATIVE adj. of, relating to, or producing illumination. |
| ILLUMINATORS | • illuminators n. Plural of illuminator. • ILLUMINATOR n. one who illuminates. |
| LUMINESCENCE | • luminescence n. (Physics) Any emission of light that cannot be attributed merely to the temperature of the emitting body. • LUMINESCENCE n. the emission of light by a substance as the result of some external stimulus. |
| LUMINIFEROUS | • luminiferous adj. Producing or transmitting light; luminous. • LUMINIFEROUS adj. bearing or bringing light. |
| LUMINOSITIES | • luminosities n. Plural of luminosity. • LUMINOSITY n. the state of being luminous. |
| LUMINOUSNESS | • luminousness n. The quality of being luminous. • LUMINOUSNESS n. the state of being luminous. |
| NONALUMINIUM | • nonaluminium adj. (British spelling) Alternative form of nonaluminum. • NONALUMINIUM adj. not made of aluminium, also NONALUMINUM. |
| REILLUMINING | • reillumining v. Present participle of reillumine. • REILLUMINE v. to illumine again. |
| SUPERLUMINAL | • superluminal adj. (Astronomy, physics, fiction, fantasy) Faster than light; having a speed greater than light. • SUPERLUMINAL adj. faster than light. |
| TRANSLUMINAL | • transluminal adj. (Anatomy) Across a lumen. • transluminal adj. Relating to translumination. • TRANSLUMINAL adj. (of a surgical procedure) performed within a blood vessel, duct, or cavity, also TRANSLUMENAL. |
| VOLUMINOSITY | • voluminosity n. Quality or degree of being voluminous. • VOLUMINOSITY n. the state of being voluminous. |
| VOLUMINOUSLY | • voluminously adv. In a voluminous manner. • VOLUMINOUS adv. bulky, filling much space. |